Edwin Mansfield 1995- research underlying industrial innovations

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Academic Research Underlying Industrial Innovations: Sources, Characteristics, and Financing Author(s): Edwin Mansfield Source: The Review of Economics and Statistics, Vol. 77, No. 1 (Feb., 1995), pp. 55-65 Published by: The MIT Press Stable URL: http://www.jstor.org/stable/2109992 . Accessed: 16/07/2014 09:06 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp . JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. . The MIT Press is collaborating with JSTOR to digitize, preserve and extend access to The Review of Economics and Statistics. http://www.jstor.org This content downloaded from 200.16.16.13 on Wed, 16 Jul 2014 09:06:48 AM All use subject to JSTOR Terms and Conditions

Transcript of Edwin Mansfield 1995- research underlying industrial innovations

Academic Research Underlying Industrial Innovations: Sources, Characteristics, and FinancingAuthor(s): Edwin MansfieldSource: The Review of Economics and Statistics, Vol. 77, No. 1 (Feb., 1995), pp. 55-65Published by: The MIT PressStable URL: http://www.jstor.org/stable/2109992 .

Accessed: 16/07/2014 09:06

Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at .http://www.jstor.org/page/info/about/policies/terms.jsp

.JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range ofcontent in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new formsof scholarship. For more information about JSTOR, please contact [email protected].

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ACADEMIC RESEARCH UNDERLYING INDUSTRIAL INNOVATIONS: SOURCES, CHARACTERISTICS,

AND FINANCING

Edwin Mansfield*

Abstract-There has been no systematic study of the charac- teristics of the universities and academic researchers that seem to have contributed most to industrial innovation. Nor do we know how such academic research has been funded. This paper, based on data obtained from 66 firms in seven major manufacturing industries and from over 200 academic researchers, sheds new light on the sources, characteristics, and financing of academic research underlying industrial in- novation. The findings should be of interest to economists concerned with technological change and to policy makers attempting to increase the economic payoff from the nation's academic research.

I. Introduction

IN recent years there has been a great deal of interest in the process by which firms benefit

from externally performed research and develop- ment (R&D), and the extent and importance of such spillovers. Research by Acs, Audretsch, and Feldman (1992), Jaffe (1989), Mansfield (1991a, 1991b, 1992), Nelson (1988), von Hippel (1988), and others indicate that technological change in important segments of the economy has been based significantly on academic research. How- ever, there has been no systematic study of the characteristics of the universities and academic researchers that seem to have contributed most to industrial innovation. Nor do we know where such universities or academic researchers have obtained funding for the relevant R&D projects or how big or small their projects have been.

Information of this sort would be of interest to economists and other scholars concerned with the process of technology transfer and to policy mak-

ers attempting to increase the economic payoff from the nation's academic research. In this pa- per I report the results of a study based on data obtained from 66 firms in seven major manufac- turing industries and from over 200 academic researchers. Although the findings are subject to many limitations, they shed new light on the sources, characteristics, and financing of aca- demic research underlying industrial innovation.

II. Academic Research and Industrial Innovation

To begin with, it is worthwhile reviewing some earlier findings regarding the extent to which technological innovations in various industries have been dependent on recent academic re- search. Based on data obtained from 76 firms in the seven industries listed in table 1, about 11% of their new products and about 9% of their new processes could not have been developed (without substantial delay) in the absence of recent aca- demic research (defined as academic research occurring within 15 years of the commercializa- tion of the innovation).1 As shown in table 1, the percentage of new products and processes based in this way on recent academic research seems to be highest in the drug industry and lowest in the petroleum industry.2

Received for publication March 1, 1993. Revision accepted for publication February 7, 1994.

* University of Pennsylvania. The research on which this paper is based was supported by

a grant from the National Science Foundation, which, of course, is not responsible for the findings. I am indebted to Leonard Lederman of the Foundation for his encouragement and advice. Thanks also go to the many firms (76 in section II, and 66 in subsequent sections), as well as about 220 academic researchers that provided data. This paper was presented at the January 1993 annual meetings of the American Economic Association. A preliminary version was presented at the Na- tional Science Foundation, Lehigh University, and the Maine Science and Technology Commission.

1By "substantial delay," we mean a delay of a year or more, according to rough estimates made by the firms.

2 New products and processes sometimes could have been developed without the findings of recent academic research, but it would have been much more expensive and time-con- suming to do so. In table 1, such cases are designated as ones where development occurred with "very substantial aid from recent academic research." Approximately 8% of these firms' new products and approximately 6% of their new processes during 1975-85 fell into this category. Often, while it was technically possible for the firm to have developed them without the findings of recent academic research, it seemed economically undesirable to have tried it. Consequently, in a practical sense, many of these innovations could not have been developed (without substantial delay) in the absence of recent academic research.

Copyright X 1995 [ 55 1

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56 THE REVIEW OF ECONOMICS AND STATISTICS

TABLE 1.-PERCENTAGE OF NEW PRODUCTS AND PROCESSES

BASED ON RECENT ACADEMIC RESEARCH, SEVEN INDUSTRIES, UNITED STATES, 1975-85

Percentage that Could Not Have Percentage that Was Been Developed (without sub- Developed with Very stantial delay) in the Absence Substantial Aid from of Recent Academic Research Recent Academic Researcha

Industry Products Processes Products Processes

Information processing 11 11 17 16 Electronics 6 3 3 4 Chemical 4 2 4 4 Instruments 16 2 5 1 Pharmaceuticals 27 29 17 8 Metals 13 12 9 9 Petroleum 1 1 1 1 Industry mean 11 9 8 6

Source: Mansfield (1991a). a See footnote 2.

To prevent confusion, it is worthwhile to note that many of the innovations based on recent academic research were not invented at universi- ties. Academic research often provides new theo- retical and empirical findings and new types of instrumentation that are essential for the devel- opment of a new product or process, but does not provide the specific invention itself. Thus, to cite an old and well-known case, academic studies by Professors Kipping and Staudinger provided basic information concerning organo-silicon chemistry which laid the groundwork for industrial sili- cones.3

For each firm's new products and processes introduced in 1975-85 that, according to the firm, could not have been developed (without substan- tial delay) in the absence of recent academic research, information was obtained concerning the mean time interval between the relevant aca- demic research finding and the first commercial introduction of the product or process. (If more than one such research finding was needed for the development of the innovation, this time in- terval was measured from the year when the last of these findings was obtained.) The mean time lag in these industries was about 7 years. In interpreting this result, note once again that these data pertain only to recent academic research.

Particularly in industries like drugs, instru- ments, and information processing, the contribu- tion of academic research to industrial innovation has been considerable. In the seven industries in

table 1, new products first commercialized in 1982-85 that could not have been developed (without substantial delay) in the absence of re- cent academic research accounted for about $24 billion of sales in 1985 alone. And in these indus- tries, new processes first commercialized in 1982-85 that could not have been developed (without substantial delay) in the absence of re- cent academic research resulted in about $7 bil- lion in savings in 1985 alone. While these figures are rough, they certainly indicate that industrial innovation in these industries has been based to a substantial degree on recent academic research, and crude estimates suggest that the social rate of return from academic research has been high.4

III. Sources of Academic Research Underlying Industrial Innovations

Although the foregoing results indicate that recent academic research has made a significant contribution to innovation in these industries, they tell us nothing about the kinds of academic research that the innovating firms believe to have been most important in this regard. To help illu- minate this topic, we drew a random sample of 70 major firms from these industries. Each firm was

3Jewkes, Sawers, and Stillerman (1969). Also see von Hip- pel (1988).

4Mansfield (1991a). The problems in allocating the social returns between academic and industrial research are obvi- ous. However, crude estimates suggest that the social rate of return from academic research remains substantial even if seemingly generous assumptions are made concerning the social rate of return from industrial research and other indus- trial innovation costs. See Mansfield (1992). Of course, as I have stressed here and elsewhere, these estimates of social rates of return are only rough. See Mansfield (1977, 1980, 1991b).

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ACADEMIC RESEARCH UNDERLYING INDUSTRIAL INNOVATIONS 57

asked to cite about five academic researchers whose work in the 1970s and 1980s contributed most importantly to the firm's new products and processes introduced in the 1980s.

Although our initial requests for information and cooperation were made to the firms' chair- men, the respondents generally were the top R&D executives who based their responses in considerable part on detailed data obtained from people at lower levels of their organizations. Most of the firms went to a considerable amount of trouble to provide these data. Written responses often were supplemented with interviews with relevant company personnel. Eventually, usable data were obtained from 66 of the 70 firms in the sample.5 Since these firms account, on the aver- age, for about a third of the R&D expenditures in these industries, the sample seems quite ade- quate.

Taken as a whole, these 66 firms cited 321 academic researchers.6 Table 2 lists the universi- ties and types of departments cited most fre- quently by the firms in each industry. In most industries, the most frequently-cited universities are world leaders in science and technology. For example, MIT, Berkeley, Illinois, Stanford, and CMU are most frequently cited in electronics; and Harvard, UCSF, Stanford, and Yale are most frequently cited in pharmaceuticals. But not all of the most frequently-cited universities are world leaders in the relevant fields. Thus, neither Wash- ington University nor the University of Utah are among the top dozen departments of chemistry, according to the assessments of the National Academy of Sciences.7

With regard to type of department, it appears that the bulk of the cited academic research took place in departments closely related to the tech-

nology of the industry in question. In the elec- tronics industry, over 60% of the cited academic researchers were in electrical engineering or me- chanical engineering departments. In the chemi- cal industry, almost 70% were in chemistry or chemical engineering departments. In the phar- maceutical industry, the cited academic re- searchers seemed to be scattered over a wider variety of fields and departments than in the electronics or chemical industries, but this may have been due to the fact that the pharmaceutical industry, as defined here, includes some medical products firms.8

IV. Effects of Faculty Quality, Scale of Research Effort, and Geographical

Proximity on Perceived University Contribution

As pointed out in the previous section, one factor that would be expected to influence how frequently a particular university is cited in this way is the quality of the university's faculty. An- other factor that is often stressed by policymakers is the scale of a university's R&D activities in the relevant area: a critical mass of researchers and equipment is often regarded as necessary to achieve high productivity in particular aspects of academic research. Still another factor is the geo- graphical proximity of a university to the firms in the sample. Because there are obvious advan- tages in firms working with, and keeping abreast of developments at, local colleges and universi- ties, one might expect that colleges and universi- ties located near many of the firms would tend to be cited relatively often.9

To test whether these factors are useful in explaining the differences among universities in the number of times they were cited, we assume that

Yi = ao + a1Qj + a2R + a3L + zi, (1)

where Yi is the number of citations received by

5 The industrial distribution of the firms in the sample was as follows: electronics, 14; information processing, 16; phar- maceuticals, 8; chemicals, 13; petroleum 5; metals, 4; and instruments, 6. An attempt was made to allocate the sample optimally among industries (that is, with sample size being proportional to the total number of firms in each industry times the relevant standard deviation).

6 The number cited by each industry was as follows: elec- tronics, 84; information processing, 64; pharmaceuticals, 47; chemicals, 51; petroleum, 28; metals, 25; and instruments, 22. Eighteen academic researchers were cited by more than one firm, so the number of distinct researchers cited is 303, not 321. In tables 2-3, we weight each researcher by the number of firms that cited him or her.

7 See National Academy of Sciences (1982).

8 The frame for our sample of firms was the list of firms in Business Week's annual R&D Scoreboard. Included in the pharmaceutical industry were some medical products firms.

9For some relevant discussion, see Jaffe (1989), Jaffe, Trajtenberg, and Henderson (1993), Acs, Aubretsch, and Feldman (1992), Government-University-Industry Round- table and Industrial Research Institute (1991), and Peters and Fusfeld (1982).

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58 THE REVIEW OF ECONOMICS AND STATISTICS

TABLE 2.-UNIVERSITIES AND DEPARTMENTS CONTAINING THE LARGEST PERCENTAGE OF ACADEMIC RESEARCHERS CITED

BY 66 MAJOR FIRMS (IN THE ELECTRONICS, INFORMATION PROCESSING, PHARMACEUTICAL, CHEMICAL, PETROLEUM,

METALS, AND INSTRUMENTS INDUSTRIES) AS CONTRIBUTING MOST IMPORTANTLY (DURING THE 1970s AND 1980s) TO THE DEVELOPMENT OF THEIR NEW PRODUCTS AND PROCESSES INTRODUCED IN THE 1980s

Electronics Information Processing Pharmaceuticals

University Department University Department University Department

MIT (15%) Elect. Eng. (50%) MIT (9%) Comp. Sci. (38%) Harvard (13%) Biology (11%) Berkeley (13) Mech. Eng. (11) Berkeley (8) Elect. Eng. (10) UCSF (6) Chemistrya (22) Illinois (8) Illinois (6) Mech. Eng. (10) Stanford (6) Pharmacology (14) Stanford (7) Minnesota (6) Yale (6) CMU (7) Stanford (6)

Chemicals Petroleum Metals

University Department University Department University Department

Washington (12%) Chemistry (53%) Delaware (11%) Chem. Eng. (46%) Utah (16%) Mat. Sci. (32%) MIT (8) Chem. Eng. (15) MIT (7) Chemistry (8) MIT (12) Civil Eng. (20) Utah (6) Notre Dame (7) Ohio State (8) Chemistry (12)

Princeton (7) Mech. Eng. (8) VPI (7)

Instruments

University Department

Yale (9%) Chemistry (26%) Indiana (9) Physics (16)

Radiology (16) a Includes biochemistry.

the ith university, Ri is the amount spent by the ilh university on research and development in the relevant area10 in 1980,11 L1 is the percentage of firms in the sample that are located in the same state as the ith university, zi is a random error term, and the a's are parameters. Qi, a measure of the quality of the ith university's faculty in the relevant department, comes from the National Academy of Sciences (1982), which has published faculty ratings for departments of electrical engi-

neering, computer science, biochemistry, chem- istry, and chemical engineering. These ratings range from 0 (not sufficient for doctoral educa- tion) to 5 (distinguished). For the electronics in- dustry, we assume that the relevant department is electrical engineering; for information processing, we assume it is computer science; for pharmaceu- ticals, biochemistry; for chemicals, chemistry; and for petroleum, chemical engineering.

Since Yi must be non-negative, Tobit estimates were made of the a's. Recognizing that the ef- fects of each of the independent variables may differ from one industry to another, the statistical analysis was carried out separately in each of the five industries where the sample size is reason- ably large. The results, shown in table 3, suggest that all three of the independent variables gener- ally seem to be related directly to Y; in all but one case, the estimates of a1, a2, and a3 are positive, and in about half of the cases they are statistically significant. However, there is consid- erable variation in Y that is unexplained by equa- tion (1), which would be expected both because of obvious imperfections in the data and because

10 For the electronics industry, we assume that the relevant department is electrical engineering; for information process- ing, we assume it is computer science; for pharmaceuticals, biochemistry; for chemicals, chemistry; and for petroleum, chemical engineering. For each industry, the relevant area of R&D is assumed to be R&D in this designated department, except for pharmaceuticals, where it is R&D in life sciences. (No data are available for pharmacology alone.) As we saw in table 2, these departments are responsible for much of the cited academic research, but by no means all of it. Thus, our analysis obviously is crude. Nonetheless, given that no infor- mation has been available heretofore on this topic, the results should be of interest. The data come from National Science Foundation (1985a).

11 In the case of chemical engineering and electrical engi- neering, the R&D expenditure data pertain to 1983, not 1980. See National Science Foundation (1985a).

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ACADEMIC RESEARCH UNDERLYING INDUSTRIAL INNOVATIONS 59

TABLE 3.-TOBIT ESTIMATES OF COEFFICIENTS IN EQUATION (1)

Independent Variables

Industry Intercept R Q L

Electronics -11.93 0.029 3.578c 0.030 (2.48) (0.093) (0.830) (0.035)

Information processing - 3.857c 0.60. 0.608 0.08 (1.384) (0.264) (0.520) (0.037)

Drugs - 5.300c 0.066c 0.374 0.083b (1.322) (0.022) (0.439) (0.035)

Chemicals - 3.987a 0.549 - 0.171 0.096a (2.419) (0.531) (0.953) (0.056)

Petroleum - 4.025c 0.701b 0.693b 0.014 (1.245) (0.300) (0.336) (0.024)

a Significant at the 0.10 level. b Significant at the 0.05 level.

Significant at the 0.01 level.

the independent variables are by no means the only factors influencing Y."2

To see the extent to which firms are willing to trade off faculty quality (as measured by Q) for geographical proximity, we chose a sample of nine major chemical, drug, and information pro- cessing firms, each of which estimated the proba- bility that it would support research of a par- ticular type at a university department with a specified value of Q and at various distances from the firm's R&D laboratories. The results, pertaining to 20 types of research, indicate that, holding faculty quality constant, the probability that a firm will support research at a college or university less than 100 miles away tends to be several times as great as the probability that it will support this research at a college or univer- sity 1,000 or more miles away. However, for re- search that (from the firm's vantage point and based on NSF's definitions13) is basic, geographi- cal proximity seems to play a smaller role than for applied R&D; that is, firms seem more likely to insist on high faculty quality and pay less atten- tion to location in choosing universities to do basic research. For applied R&D, there was about

a 1-in-5 chance that a firm in our sample would work with a university department with only a "marginal" faculty, but if so, there was an over- whelming likelihood that this college or university would be located within 100 miles of the firm's R&D laboratories.14

V. Size of Research Projects and Sources of Financial Support

While the foregoing findings indicate that there tends to be a direct relationship between the size of a university's R&D expenditures and its per- ceived contribution to industrial innovation (in the relevant area), this sheds no light on the size of the research projects carried out by the cited academic researchers. Based on data (in table 4) we obtained from about 90% of these re- searchers,15 their average annual academic re- search expenditures during the 1970s and 1980s generally were less than $250,000 (about $425,000 in 1992 dollars).16 Outside the pharmaceutical

12 The number of colleges and universities that could be included in this analysis was electronics, 75; information pro- cessing, 48; pharmaceuticals, 84; chemicals, 93; and petroleum, 67. If ordinary least squares regressions are run, the pattern of significant regression coefficients is much like that in table 3, and R2 is 0.30 to 0.50, except for chemicals, where it is only 0.08. If Tobit estimates are made, the normal scale parameter is about 3 in electronics and chemicals, 2 in information processing and pharmaceuticals, and 1.5 in petroleum.

13 The National Science Foundation defines basic research in industry as research that advances scientific knowledge but does not have specific commercial objectives, although such investigations may be in fields of present or potential interest to the firm.

14 For further discussion, see Lee and Mansfield (1994). 15 Of the 303 distinct citations, about 70 were to academic

researchers working at foreign universities or to an entire department. We corresponded with each of the remaining (roughly 235) cited academic researchers to obtain data con- cerning their research budgets, sources of research support, and the influence of users and funders on their choices of projects and directions taken. Eventually, after telephone and other follow-ups, these data were obtained (wholly or in part) from over 90% of them. Thus, the response rate is very high for a survey of this sort. To obtain more detailed data, we contacted a subsample of these academic researchers, and discussed these questions at length with them.

16 The National Science Foundation and others often use the GNP (or GDP) deflator as a price index for R&D inputs. The above figures in 1992 dollars are based on this index. See Mansfield (1987).

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60 THE REVIEW OF ECONOMICS AND STATISTICS

TABLE 4.-PERCENTAGE DISTRIBUTION OF CITED ACADEMIC RESEARCHERS BY THEIR AVERAGE ANNUAL

RESEARCH EXPENDITURES, 1970-89

Industry Citing the Academic Researcher

Average Annual Expenditure Information of Researchera Electronics Processing Pharmaceuticals Chemicals Petroleum Metals Instruments

Less than $100,000 15 29 3 19 24 29 25 $100,000 to under $250,000 45 35 18 44 35 35 35 $250,000 to under $500,000 28 12 36 30 18 29 25 $500,000 to under $1 million 5 3 24 7 12 0 5 $1 million and over 8 21 21 0 12 6 10

Total 100 100 100 100 100 100 100 a These figures include overhead charged by the university.

industry, where the cited academic researchers tended to have comparatively large budgets, rela- tively few of them seemed to require total annual research budgets exceeding $500,000 (about $850,000 in 1992 dollars).17 The median annual research budget of the cited academic re- searchers was about 5 times as great as the R&D expenditure per academic scientist or engineer (with a doctorate) in the relevant field, but the bulk of these projects certainly fall under the heading of "little science." 18

Besides obtaining data from the cited academic researchers concerning the levels of their aca- demic research budgets, we also got information from them regarding the sources of their financial support. Since our data pertain to all academic research carried out by each cited researcher during the 1970s and 1980s, they indicate the overall contours of a researcher's support, not just the support of whatever particular project the firm cited. Because various parts of a researcher's

portfolio of projects often are interrelated, and because the firms often cited more than one project by a researcher, this seemed to be the best way to begin.

The first point to note is that practically all of the cited academic researchers had some govern- ment support for their research. In about two- thirds of the cases, it came, at least in part, from the National Science Foundation (NSF). The De- partment of Defense (DOD) was also important, particularly in electronics, and the National Insti- tutes of Health (NIH) played a very major role in supporting academic researchers cited by the health-related industries, especially pharmaceuti- cals. The Department of Energy (DOE) and the National Aeronautics and Space Administration (NASA) also provided substantial, but more lim- ited, support. In terms of dollar support, the federal government provided about two-thirds of the funding for the cited academic researchers (table 5), which was somewhat less than the per- centage of R&D expenditures in colleges and universities financed by the federal government in the relevant fields (see note 10).19

While government support was obviously im- portant to the vast majority of the cited academic researchers, this does not mean that industry did not support many of them as well. Over four-fifths of the cited academic researchers got research funds from industry. However, industry generally supported a substantially smaller percentage of

17 Of course, the crudeness of these data should be empha- sized. Averages over such a long period of time are very rough, and the basic data sometimes are only approximate. But the general conclusion put forth in the text seems to be quite robust; it seems unlikely to be affected much by errors of this sort.

18 In each of the following fields in 1983, the R&D expendi- tures (in this field) at universities and colleges per doctoral scientist or engineer (in this field) employed by four-year colleges or universities were the following: electrical engineer- ing, $64,991; computer science, $45,299; life sciences, $73,448; chemistry, $24,153; chemical engineering, $51,656. See Na- tional Science Foundation (1985a, c). As pointed out in foot- note 10, these are regarded as the "relevant fields" for the electronics, information processing, pharmaceutical, chemical, and petroleum industries. Note that, in the pharmaceutical industry, the relevant field is not the same as the "relevant department" underlying Qi because of the nature of the available data.

19 For the five industries in table 5 for which a comparison can be made, the federal government provided, on the aver- age, about 66% of the funding for the cited academic re- searchers, as compared with about 68% of the academic R&D in the relevant fields.

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ACADEMIC RESEARCH UNDERLYING INDUSTRIAL INNOVATIONS 61

TABLE 5.-SOURCES OF FUNDING FOR CITED ACADEMIC RESEARCHERSa AND FOR ALL ACADEMIC R&D IN RELEVANT FIELD

Percentage of Cited Mean Percentage of Academic Researchers Research Budgets of Where Research Was Cited Academic Percentage of Academic Funded (wholly or in Researchers Funded R&D in Relevant

Citing the part) by byb Field Funded byc Academic Federal Federal Federal Researcher Government Firms Government Firms Government Private

Electronics 95 86 69 24 75 7 Information

processing 91 65 51 22 73 9 Pharmaceuticals 91 76 85 12 61 9 Chemicals 96 78 71 21 74 8 Petroleum 100 94 56 10 58 13 Metals 89 94 44 47 Instruments 100 80 72 18

Mean 95 82 64 22 68 9

Source: See the text. a For those researchers who were involved in academic research during only part of this period, the figures

pertain to only this part of the period. For those who were involved in academic research during the entire period and whose pattern of support was significantly different during the 1980s than during the 1970s, we used the pattern of support during the 1970s, since this was generally the period when the work occurred for which the academic researcher was cited.

b For those researchers whose pattern of support was significantly different during the 1980s than during the 1970s, the figures for the federal government during the 1980s tend to be lower than those shown above, and the figures for firms for the 1980s tend to be higher than those shown above.

c The "relevant field" for each industry is given in footnote 10. These figures pertain to 1983, and come from National Science Foundation (1985a).

the total research budgets of the cited academic researchers than did government (22% versus 64%). Only in the metals industry, where the sample size is relatively small, did industry sup- port exceed federal government support. None- theless, as might be expected, firms seemed to be more important as sources of support for the cited academic researchers than for all academic researchers in the relevant fields. The percentage of R&D expenditures in colleges and universities financed by private sources was about 10 percent- age points lower, on the average, than the per- centage of the cited academic researchers' bud- gets financed by industry.20

The relative importance of particular govern- ment agencies varied from industry to industry;

for example, the National Institutes of Health accounted for an overwhelming percentage of the government funding of the academic researchers cited by the pharmaceutical industry, and the Defense Department supported a larger percent- age of the government funding of academic re- searchers cited by the electronics industry than did any other agency (table 6). For a particular industry, the agencies that were the leading fun- ders of research in the relevant field tended to provide the biggest share of support for the cited academic researchers, but they almost always were less important to the cited academic researchers than to researchers in the relevant field because a substantial proportion of the cited academic re- searchers were outside the relevant field. (Recall table 2.) By the same token, agencies that were not the leading funders of research in the rele- vant field tended to provide a bigger share of the support for the cited academic researchers than their share of research funding in the relevant field would indicate.

A substantial number of the cited academic researchers reported that their sources of finan- cial support shifted considerably from the 1970s to the 1980s. In the later decade, more of their

20 For the five industries in table 5 for which a comparison can be made, firms provided, on the average, about 18% of the funding for the cited academic researchers; on the other hand, private sources provided, on the average, about 9% of the funding for all academic R&D in the relevant fields. Of course, the fact that the cited academic researchers received more industrial funding than the typical academic researcher in the relevant field helps to explain why, as noted in the previous paragraph of the text, the proportion of support from the federal government is somewhat less for the cited academic researchers than for all academic researchers in the relevant field.

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62 THE REVIEW OF ECONOMICS AND STATISTICS

TABLE 6.-MAJOR SOURCES OF FEDERAL FUNDING FOR CITED ACADEMIC RESEARCHERSa AND FOR ALL ACADEMIC R&D IN THE RELEVANT FIELD

Industry Citing the Academic Researcher

Federal Information Pharma- Agency Electronics Processing ceuticals Chemicals Petroleum Metals Instruments

Percentage of Cited Academic Researchers with Federal Funding Whose Research Was Financed (wholly or in part) by Each Agency

NSF 71 65 49 61 88 69 70 DOD 77 48 20 46 41 44 45 NIH 13 20 84 39 24 12 50 DOE 8 16 13 27 24 25 25 NASA 28 7 0 11 12 7 20

Mean Percentage of Research Budgets of Cited Academic Researchers Financed by Each Agency (as percent of mean percentage financed by all federal agencies)

NSF 32 27 6 24 57 30 36 DOD 43 31 6 14 20 36 21 NIH 7 12 65 31 11 2 18 DOE 3 6 6 17 4 9 7 NASA 7 6 0 6 2 0 6

Percentage of Federal Obligations for Academic Research in Relevant Field by Each Agencyb

NSF 27 43 6 39 76 31 DOD 64 52 1 12 15 42 NIH 0 0 78 25 0 0 DOE 3 2 2 14 7 19 NASA 5 3 c 3 1 8

Source: See the text. a See footnote a of table 5. b The "relevant field" for each industry other than metals is given in footnote 10; for metals, it is metallurgy and materials. These figures pertain to 1981,

and come from National Science Foundation (1985b). c Less than 0.5%.

funding came from industry, less from govern- ment. In some cases, the shift was large; for example, for five academic researchers cited by the electronics industry, about 80% of their fi- nancial support came from the federal govern- ment (and 10% from firms) in the 1970s, as compared with about 20% from the federal gov- ernment (and 80% from firms) in the 1980s.

Most of the cited academic researchers re- ceived support from multiple sources of funds. The bulk of them were supported by two or more of the following four sources: NSF, NIH, DOD, or firms. In electronics in particular, there fre- quently was support from three or more of them. Many of the cited academic researchers seem to have been entrepreneurial in outlook. Based on discussions with a sample of them, there was considerable interaction between them and po- tential sources of funding. As would be expected, a number of them complained that it was very difficult to obtain support for projects that they regarded to be of prime importance.

VI. Complementarity of Government-Funded and Industry-Funded Work of Cited

Academic Researchers

Practically all of the cited academic researchers supported financially by both government and industry believe that their industry-funded work complemented their government-funded work. In the bulk of the cases, their government-funded work preceded their industry-funded work, and very often their industry-funded work was aimed at extending, deepening, or furthering the results of their previous government-funded work (table 7).21 On the average, more than 50% felt that their government-funded work was more funda-

21 The data underlying table 7 were collected from a subset of the academic researchers included in tables 4-6 that had obtained funding from both government and industry. In all, data were gotten from 83 of the cited academic researchers, the industry breakdown being: electronics, 35; information processing, 8; chemicals, 14; pharmaceuticals, 15; petroleum, 11. Smaller samples were collected in the metals and instru- ments industries.

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ACADEMIC RESEARCH UNDERLYING INDUSTRIAL INNOVATIONS 63

TABLE 7.-RELATIONSHIPS BETWEEN GOVERNMENT-FUNDED AND INDUSTRY-FUNDED WORK OF CITED ACADEMIC RESEARCHERS WITH BOTH TYPEs OF FUNDINGa

Information Electronics Processing Drugs Chemicals Petroleum

(percentage of cited academic researchers)

Government-funded work preceded industry- funded work 85 62 67 86 64

Government-funded work regarded as more fundamental than industry-funded work 76 50 57 50 36

Problems worked on in academic research frequently or predominantly developed out of industrial consulting 58 62 43 57 73

Continuing consulting relationships with firms supporting academic research 65 75 100 79 82

Students took jobs with firms financing academic research 77 87 73 64 91

Source: See footnote 21. a The metals and instruments industries are omitted because the sample sizes are quite small.

mental than their industry-funded work, but in the petroleum, chemical, and information pro- cessing industries, this figure did not exceed 50%.

In a large majority of the cases, the cited academic researchers had continuing consulting relationships with at least some of the firms sup- porting their academic research, and their stu- dents have taken jobs with at least some of these firms.22 Moreover, in all industries other than drugs, over half of the cited academic researchers reported that the problems they worked on in their academic research frequently or predomi- nantly developed out of their industrial consult- ing-and in many cases, the cited academic re- searchers' government-funded work stemmed

from ideas and problems they encountered in industrial consulting.23

Consequently, although their government- funded work tended to precede their industry- funded work, the ideas and problems they worked on (sometimes initially, and certainly later on) in both their government-funded work and industry-funded work often were influenced in an important way by their consulting and industrial

22 One important way that these researchers became famil- iar with the availability of industrial funding and the needs of industrial users was through consulting. Over 90% of the cited academic researchers have been consultants to industry, the median amount of time devoted to industrial consulting being about 30 days per year. The percentage devoting 48 or more days to consulting was largest among those cited by the electronics industry, and smallest among those cited by the pharmaceutical industry.

23 About two-thirds of the cited academic researchers in our sample felt that their own views were of primary importance in determining the nature and direction of the research they carried out. Only about one-tenth of the cited academic researchers said that potential funders or users of research had the primary influence over these matters in their case. However, this does not mean that the cited researchers did not take into account the views of potential funders and/or users of research. On the contrary, over half of them reported that their choice of problems and direction of work were influenced considerably (sometimes primarily) by potential funders and /or users. The extent of this influence seemed to be greatest for researchers cited by the electronics industry and for researchers supported heavily by DOD. Also, it seemed to be relatively great for researchers whose support was largely from industry.

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64 THE REVIEW OF ECONOMICS AND STATISTICS

experience. While much academic research is car- ried out with little regard for industry's needs, this does not seem to have been true of the work of most of the cited academic researchers.

VII. Summary and Conclusions

A substantial proportion of industrial innova- tions in high-technology industries like drugs, in- struments, and information processing have been based directly on recent academic research, al- though in many cases the invention itself did not stem from the universities. Based on the findings of this paper, the extent to which a university is credited by firms in the electronics, information processing, drug, chemical, and petroleum indus- tries with making major contributions to these firms' innovations tends to be related directly to the quality of the university's faculty in the rele- vant department (according to the NAS ratings), to the size of its R&D expenditures in relevant fields, and to the proportion of the industry's members located nearby. However, there is a considerable amount of variation unexplained by these three factors, and in all industries the ef- fects of one or two of these factors, while they almost always have the signs indicated above, are not statistically significant.

The fact that a university's faculty rating (in the relevant department) tends to be related directly to its perceived contribution to industrial innova- tion seems to contradict the widely-held view that the highest-ranked university departments focus so heavily on research with a relatively long-term payoff that they would be unlikely to show up well in citations of this sort. However, the rela- tionship between faculty rating and contribution to industrial innovation is so weak in several of these industries that it seems likely that many modestly-ranked departments play as big a role in this regard as some of the highest-ranked depart- ments.

With regard to their research support for uni- versities, firms tend to trade off faculty quality (as measured by the NAS ratings) for geographical proximity, particularly in the case of applied R&D. For basic research, they seem to pay less attention to location in choosing universities to work with and support, perhaps because in many kinds of applied R&D, it is very useful for aca- demic and firm personnel to interact and work together on a face-to-face basis, whereas in basic

research such ties may be weaker and more spo- radic. Also, the difference between highly-rated and modestly-rated university departments in ef- fectiveness and productivity may well be greater for basic research than for applied R&D.

With regard to government funding, the Na- tional Science Foundation, Department of De- fense, and National Institutes of Health seem to play the predominant roles in financing academic research cited by the seven industries studied here. Whereas the National Institutes of Health are particularly important in supporting academic researchers cited by the health-related industries (drugs, chemicals, and instruments), the National Science Foundation and the Department of De- fense are major supporters of academic re- searchers cited across the board. The leading role played by the National Science Foundation would probably be expected. The fact that the Depart- ment of Defense is so important in supporting academic researchers cited by such a wide swath of industries is noteworthy. The Department of Energy and the National Aeronautics and Space Administration seem to play lesser roles, at least in these industries.

Finally, the findings regarding the funding of these projects seem to reveal a complex web of financial and intellectual relationships among academic researchers, government agencies, and firms, Practically all of the cited academic re- searchers were supported, at least in part, by federal funds. If government agencies were trying to support work of this sort, they seemed to miss relatively few of the leading researchers, as indi- cated by the data presented here. Industry too supported the work of most of them, although its contribution was much smaller-and tended to come later-than that of the government. Once they achieved prominence, practically all of the cited academic researchers were involved in con- sulting relationships with firms, which helped to stimulate many of the ideas and topics taken up subsequently in both their government-funded and industry-funded work.

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