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THE AGRIFOOD SECTOR - LINKAGES AND DRIVING EFFECTS IN THE NATIONAL ECONOMY
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Transcript of THE AGRIFOOD SECTOR - LINKAGES AND DRIVING EFFECTS IN THE NATIONAL ECONOMY
1
THE AGRIFOOD SECTOR -
LINKAGES AND DRIVING EFFECTS IN NATIONAL ECONOMY
Filon TODEROIU1
Abstract
In the national economy system, the subsystems of agricultural production (ASPEFV) and of
food production (PABT) are "anchored" to other sectors by a series of "backward linkages"
and "forward linkages". Representing, in fact, the intermediary consumption intensity in
final production, the backward linkages coefficients per total national economy had a strong
descending trend in the period 1989 – 1998. One may notice the presence of strong
backward linkages in a number of four branches of the six branches considered, out of which
food industry can be easily explained, if we consider that agriculture is the main upstream
supplier of food industry. Also, one may observe the presence of strong linkages in only two
of the six branches, out of which agriculture can be easily explained if we consider that the
main beneficiary in the downstream sector of agriculture is food industry. While agriculture
(ASPEFV) is found in the type III of linkages (weak backward linkages but strong forward
linkages) in eight of the ten years of the investigated period and in the type IV of linkages in
the remaining two years, food industry is found in type II of linkages (strong backward but
weak forward). Agriculture would induce from 1.935 to 2.353 economic activity units in its
upstream sector and from 2.464 to 2.903 units in its downstream sector. It means that,
summing up the two driving effects, agriculture would induce more than 4.8 economic
activity units, and food industry more than 4.7 units. At the same time, agriculture may be
characterized by a low driving backward power, but quite a strong driving forward power; by
contrast, the trade features by a low driving forward power.
Key words: agrifood, linkages coefficients, driving effects, transition economy, Romania.
JEL Classification: Q18, P28, C49
1. Backward and Forward Linkages
1.1. Methodological benchmarks
Relevant information regarding the structural changes produced in Romania’s economy,
mainly after 1989 – as a premise to the identification of adjustment potential to the market
economy rules and EU rigors – are provided by the input – output analysis of the data
synthesized in the national accounts.
Starting from the synthetic input – output table (TIO), elaborated by the National
Commission for Statistics on the basis of national accounts, after aggregating the activities
by six branches (ASPEFV = agriculture, forestry and hunting, pisciculture and forest
operation; PABT = food products, beverages and tobacco; TEXC = textiles and ready-made
clothes; COM = trade; HRAT = hotels, restaurants and tourism agencies; RRAM = remaining
branches of the economy; TRAM = total branches), the matrix of structural coefficients of
intermediary inputs was elaborated in relation to final production, on one hand, and the
matrix of intermediary deliveries in relation to final demand, on the other hand (Artis et. al.,
1994, Enciso et. al., 1995, Toderoiu, 1996).
1 Institute of Agricultural economics, The Romanian Academy.
2
The main relations existing between the agrifood branches are revealed by
determining those considered as “key” branches, for which the evolution and relative
position are investigated in the context of the economic activity as a whole. The Chenery –
Watanabe and Rasmussen coefficients make it possible to analyze the most important
relations that are established between the agrifood branches and the remaining production
system in the national economy.
The analysis of dependence relations that are established between the agrifood
sector and the other sectors of the economy, as well as the determination of branches that
are considered as ‘engines’ to development can be made starting from the Input – Output
Table (TIO), that contains the inter-sectoral relations in the economy relevant linkages
existing between the indices and coefficients with which the direct and indirect relations
existing between the production sectors of the economy are relatively optimally quantified.
Several quantification modalities of these inter-sectoral relations are identified:
a) by measuring the main aggregate dimensions of the primary sector and of the agrifood
industries;
b) by the analysis of the dependence relations between the sectors composing the agrifood
system, starting from the study of linkages between the production branches, the
results being under the form of internal intermediary consumption (demand) matrix and
of total intermediary consumption;
c) by the analysis of structural sensitiveness, while determining the relative importance of
each of the TIO technical coefficients;
d) by the analysis of agrifood system external dependence.
In the national economy system, the subsystems of agricultural production (ASPEFV) and of
food production (PABT) are ‘anchored’ by a series of backward linkages - that are produced
when a production branch uses intermediary inputs coming from other branches – and
forward linkages – when the products of a certain branch are used for other branches, as
intermediary inputs to produce their products.
The inter-sectoral relations at national economy level can be investigated by
quantifying the direct effects (Chenery – Watanabe coefficients) and the total effects
(Rasmussen coefficients).
The first econometric attempt to measure the relations existing between the
different economic activities was made by Hirschman (1958); for the first time, Chenery and
Watanabe (1958) made a classification of the economic activities in relation to the forward
and backward linkages.
The backward linkages coefficients (μj) are defined as:
µj = Σ (xij / Xj) (1)
where:
xij = the uses given by the branch ‘j’ to the products of branch ‘I’ (i.e. the share of
intermediary inputs in the final production of branch ‘j’);
Xj = value of final (effective) production of branch ‘j’.
If µj is higher than are average of all branches, this means that the specific weight of
intermediary inputs in the final production of branch ‘j’ is high and, as a result, the activity
has strong backward linkages.
The coefficients of forward linkages ( ωI) are similarly defined:
ωi = Σ (xij / Zi) (2)
where:
xij = products of branch ‘i’ used as inputs for other branches ‘j’;
Zi = total uses of branch ‘i’;
The coefficient ωI represents the specific weight of the intermediary demand in total
uses of branch ‘I’. If this is higher than the average of all branches, it means that the share of
3
intermediary demand of branch ‘I’ in relation to toal uses is high and, as a result, the
respective activity presents strong forward linkages.
Starting from the coefficients defined above, the activity branches can be classified
into four types, depending upon the linkages that are present:
a) branches with forward and backward linkages (and-and);
b) branches with backward linkages but no forward linkages (and – no);
c) branches with no backward linkages but with forward linkages (no – and);
d) branches with no forward linkages and no backward linkages (no – no).
In relation to the average of coefficients per total branches, the four types of linkages
can be grouped into strong linkages and weak linkages. The Cheneray – Watanabe
coefficients do not include the indirect linkages and hence they give a partial picture to the
multitude of intersectoral interdependecies. A first approximation of the interdependency
level of productive branches is given by the sum of elements in the Leontieff inverse matrix
columns. The diffusion effect (Edj) is expressed as:
Edj = Σ Aij (3) where:
Aij = column vectors of the Leontieff invers matrix.
The diffusion effect reveals the productive effort of the ‘n’ branches, when the final
demand of branches ‘j’ increases by one unit, thus quantifying the backward linkages of each
branch in total economy.
The absorption effect (Eai) is defined as:
Eaj = Σ Aij (4)
where:
Aij = line vectors of Leontieff inverse matrix.
The absorption effect is equal to the sum of elements in row ‘I’ of Leontieff inverse
matrix and reveals to what extend the production of branch ‘I’ will be modified if an increase
by one unit is wanted in each element of final demand; thus the intensity by which one
sector absorbs the variations of final demand of other sectors (forward effects) is quantified.
The diffusion and absorption effects presented above can be reformulated in order
to make intersectoral comparisons, relating each sectoral value to total average. Thus,
Rasmusen (1956) defines the diffusion power (Rd) as:
Rdj = [(ΣAij / n) / (ΣΣ Aij / n2)] (5)
While the absorption power (Ra) as:
Rai = [(ΣAij / n) / (ΣΣ Aij / n2)] (6)
1.2. Coefficients of backward and forward linkages in the agrifood sector
Using the method of Chenery – Watanabe coefficients it is determined the degree in which
the investigated branches have more or less backward and or forward linkages, in relation to
the value of coefficients compared to the aggregate average of intermediary input share in
final production per total national economy.
The analysis of backward linkages coefficients by the six ‘blocks’ of the national
economy makes it possible to identify and quantify the intensity and tendency of
destructuring and disarticulation processes between each branch and the other branches
supplying intermediary inputs.
Representing, in fact, the intensity of intermediary consumptions in final production,
the coefficients of backward linkages per total national economy had a strong decreasing
trend in the period 1989-1998, ranging from 0.653 (maximum level 1989) to 0.537
(minimum level 1998).
It is quite striking that, in the economy, there are not always linear
interdependencies between the economic growth and the structural modernization of
4
national economy. Hence the lack of concordance between the minitendencies of these
parameters with economic increase (decrease) intervals in the transition period. Thus, the
three year interval of systematic economic decline (1990-1992) was converted into five
years of decreasing backward linkages coefficients, from 0.653 (1989) to 0.541 (1994). After
1995, it seems that things begin to “settle down” in the economic sector, in the sense that
years of economic growth 1995-1996 of economic features progressive coefficients of
backward linkages, while the years of economic decline 1997/1998 features regressive
coefficients.
In relation to the average per total economy, 34 of the 54 coefficients of backward
linkages afferent to transition years 1990-1998 (62.9%) are larger than unit, referring to four
branches: food industry (PABT) and remaining branches (RRAM) 9 coefficients each, on one
hand, and the textiles and ready – made clothes (TEXC) and hotel economy (HRAT) 8
coefficients each, on the other hand (Figure 1.1).
Source: own calculations according to Chenery – Watanabe method, on the basis of data from
national Accounts, 1989-1998, NIS.
Figure 1.1. Coefficients of backward linkages in Romania’s agrifood sector, 1989 – 98
At the same time, only 16 coefficients of the forward linkages out of the 54 calculated for
the transition years 1990-1998 (29.63%) are larger than unit and refer to two branches:
agriculture (ASPEFV) – 7 coefficients and the remaining branches (RRAM) – 9 coefficients
(Figure 1.2).
Source: own calculations according to Chenery – Watanabe method, on the basis of data from
national Accounts, 1989-1998, NIS.
Figure 1.2. Coefficients of forward linkages in Romania’s agrifood sector, 1989-98
0,600
0,700
0,800
0,900
1,000
1,100
1,200
1,300
1989 1990 1991 1992 1993 1994 1995 1996 1997 1998
(Wh
ole
econ
om
y =
1)
ASPEF PABT TEXC RRAMFIT-IEA-02
0,600
0,700
0,800
0,900
1,000
1,100
1,200
1,300
1,400
1,500
1989 1990 1991 1992 1993 1994 1995 1996 1997 1998
(Wh
ole
econ
om
y =
1)
ASPE F PA B T T E X C R R AMF IT-IE A -02
5
Several essential aspects are worth mentioning:
• Presence of strong backward linkages in four of the six branches considered, among
which food industry (fact that can be easily explained, if we consider that agriculture is
the main upstream supplier of food industry);
• Presence of strong forward linkages in only two of the six branches, among which
agriculture (explainable fact, if we consider that food industry is the main downstream
supplier of agriculture).
Simultaneously analysed, in ‘tandem’ the coefficients of backward and forward linkages in
relation to total economy permit the placing of each of the six branches in one of the four
types, depending upon the present linkages (Table 1.1).
Table 1.1. Distribution of the four branches of national economy into the four types of inter
– branch linkages in the period 1989-1998
Types of linkages : ASPEF PABT TEXC COM HRAT RRAM Total
correlations
I. Strong backward and
forward linkages
(μj > μ; ωi > ω )
10 10
II. Strong backward
linkages and weak
forward linkages
(μj > μ; ωi < ω )
10 9 19
III. Weak backward
linkages and strong
forward linkages
(μj < μ; ωi > ω )
8 8
IV. Weak backward and
forward linkages
(μj < μ; ωi < ω )
2 10 10 1 23
Total correlations 10 10 10 10 10 10 60
Source: own calculations, on the basis of Chenery – Watanabe coefficients, calculated for the period
1989-1998.
One can draw the clear conclusion that, while agriculture (ASPEFV) is placed in the
type III of linkages (weak backward but strong forward) in 8 years of the ten years of the
investigated period and in the type IV of linkages in the remaining two years, food industry is
totally placed in the type II of linkages (strong backward but weak forward).
2. Driving Effects of the agrifood sector in total economy
2.1. Preliminary methodological approach
The backward and forward linkages coefficients (known as Chenery – Watanabe coefficients)
do not incorporate the indirect linkages, thus giving a partial picture of inter-sectoral
interdependencies. A first attempt to calculate the interdependency level of production
branches is represented by the sum of elements in the Leontieff reciprocal matrix. Summing
up by columns the diffusion effect (Edj) is determined, that measures the productive effect
of the six branches (in reality the input – output table, elaborated by NIS, on the basis of
national accounts, includes 105 branches) when the final demand of one branch increases by
6
one unit, thus quantifying the backward effects of each branch in the context of total
economy.
Summarizing up by rows the elements of Leontieff reciprocal matrix, it is determined
to what extend the production of a certain branch is modified if each element of final
demand increases by one unit, thus quantifying the intensity by which one sector absorbs
the final demand variations of other sectors, named forward effects.
2.2. Quantification of backward and forward driving effects in the agrifood sector
Obtained on the basis Leontieff reciprocal matrix of the structural coefficients of backward
and forward linkages, the Rasmussen coefficients of backward driving (diffusion) effects and
forward (absorption) effects quantify the direct relations that are established in national
economy, starting from the inter-sectorally induced demand. The use of algorithms
elaborated2 for each of the six branches and for the whole economy, for each year of the
investigated period, led to the determination of 140 diffusion coefficients (backward driving
effects) and absorption coefficients (forward driving effects).
When analyzing the coefficients for the period 1990-1998 compared to the year
1989, one can draw a series of conclusions referring to the extend to which the transition
from centrally – planned to market economy meant an important improvement of the
driving capacity of different branches.
In the first place, in total national economy, the average value of backward driving
coefficients (which is similar to that of forward coefficients) for the period 1990-1998 was
2.355, which is means that, in this period, an economic activity unit induced by about 22%
less economic activity compared to 1989.
In the second place, among the six investigated branches, only the textile and ready-
made clothes industry (TEXC) has average backward and forward driving effects for the years
1990-1998 which are higher than those in the year 1989; the other two branches (trade – CO
and hotels economy – HRAT) have averages superior th the year 1989 only in the forward
driving effects.
In the third place, the decline rates of the driving effects induced by the remaining
branches (RRAM) are among the highest (27.4% in the absorption effects and 23.5% in the
diffusion effects).
In the fourth place, both main components of the agrifood sector (agriculture –
ASPEFV and food industry – PABT) present considerable decline of the driving effects, their
averages in the transition period being by 10.9% and 19.7% respectively lower than their
levels in 1989 in agriculture and by 11.6% and 12.0% in the food industry.
Thus, as we should know what are the economic driving effects in the future, one
can state that agriculture would induce in the remaining economic branches from 1.935 to
2.353 economic activity units in its upstream (backward) sector its downstream (forward)
sector. This means that by summing up the two driving effects, agriculture might induce
more than 4.8 economic activity units, while food industry more than 4.7 units.
2 Algorithms include econometric relations to determining the backward and forward linkages
(structural coefficients), the backward and forward driving effect (Chenery – Watanabe coefficients),
the backward and forward driving power (Rasmusen coefficients), as well as the sensitivity
coefficients, that measure the maximum percentage modification of technical coefficients that is
accepted, with no error produced by this variation in sectoral production larger than 1% (Annexes 2.2
–2.5).
7
2.3. Backward and forward driving power in the agrifood sector
The most pregnant picture of diffusion effects (Edj) and of absorption effects (Eai) was
obtained by relating each value given to the two effects with their average per total national
economy (Rasmusen coefficients), thus measuring the diffusion power (Rdj) and the
absroption power (Rai) respectively these coefficients allow for relevant intersectoral
comparisons (Table 2.1).
Table 2.1. Backward driving power (diffusion = Ed) and forward driving power (absorbtion =
Ea) in Romania’s economy, 1989 – 98 (Total economy= 1).
1989 1990 1991 1992 1993 1994 1995 1996 1997 1998
Rd 0,868 0,780 0,883 0,899 0,907 0,914 0,868 0,865 0,881 0,937 ASPEF
Ra 1,274 1,119 1,081 1,085 1,322 1,364 1,208 1,091 1,091 1,160
Rd 1,074 1,031 1,081 1,099 1,077 1,096 1,065 1,070 1,103 1,111 PABT
Ra 0,934 0,975 0,800 0,846 0,939 1,023 0,937 0,991 1,007 0,939
Rd 0,930 1,008 1,161 1,170 1,123 1,057 1,058 1,083 1,078 1,085 TEXC
Ra 0,640 0,684 0,733 0,752 0,748 0,780 0,817 0,816 0,851 0,905
Rd 0,707 0,745 0,618 0,615 0,686 0,718 0,746 0,796 0,808 0,777 COM
Ra 0,373 0,397 0,375 0,389 0,437 0,472 0,452 0,430 0,443 0,460
Rd 1,294 1,258 1,135 1,098 1,111 1,124 1,165 1,073 1,023 1,048 HRAT
Ra 0,382 0,404 0,381 0,401 0,452 0,489 0,491 0,483 0,494 0,507
Rd 1,127 1,178 1,123 1,119 1,097 1,092 1,098 1,113 1,107 1,041 RRAM
Ra 2,396 2,421 2,630 2,527 2,103 1,873 2,094 2,189 2,113 2,029
Source: own calculations, on the basis of data from National Accounts, Rasmunsen method. The parameters from table 2.1 can be analyzed in several ways:
• By separate, comparative analysis of tendencies in backward driving powers in the main
branches taken into consideration (Figure 2.1);
• By separate, comparative analysis, of the tendencies in the forward driving powers in
the main branches taken into consideration (Figure 2.2);
• By determining the variation coefficients of the backward and forward driving powers,
by which can find out their relative stability value, as a premise to their taking into
consideration in the elaboration of certain sectoral development strategies (Annex 2.1).
From the perspective of the last mentioned analysis modality, it was determined that, in the
period 1990-98, the driving power (Rasmussen coefficients) in the backward sector had
variation coefficients ranging from 20.5% (PABT) to 8.85% (COM), agriculture being the third
branch out of the six branches with 4.54%.
Source: own calculations according to Rasmusen method, on the basis of National Accounts data,
1989-1998.
Figure 2.1. Backward driving power of the agrifood sector, 1989 - 98
0,7
0 ,75
0,8
0 ,85
0,9
0 ,95
1
1 ,05
1,1
1 ,15
1,2
1989 1990 1991 1992 1993 1994 1995 1996 1997 1998
(Wh
ole
econ
om
y =
1)
A S P E F P A B T T E X C R R A MF IT -IE A -02
8
Source: own calculations according to Rasmusen method, on the basis of National Accounts data,
1989-1998.
Figure 2.2. Forward driving power of the agrifood sector, 1989 – 98
The much larger variation coefficients however placed in the proximity of the higher
confidence limit (10%), describe the forward driving powers, i.e. from 7.04% (PABT) to
10.78% (HRAT), agriculture being placed on the second place in the hierarchy of the six
branches.
The simultaneously interpretation of the two categories of driving powers
(backward – Rd and forward – Ra) for each year, make it possible to distribute the six
branches into the four driving power (Table 2.2).
Table 2.2. Distribution of national economy branches into the four driving types,
1989 - 1998
Driving typese: ASPEF PABT TEXC COM HRAT RRAM Total
correlations
I. Strong backwards and
strong forwards
(Rd > 1; Ra > 1 )
2 10 12
II. Strong backwards and
weak forwards
(Rd > 1; Ra < 1)
8 9 10 27
III. Weak backwards and
strong forwards
(Rd < 1; Ra > 1)
10 10
IV. Weak backwards and
weak forwards
(Rd < 1; Ra < 1)
1 10 11
Total correlations 10 10 10 10 10 10 60
Source: own calculations, based upon Chenery-Watanabe coefficients matrix, calculated for the period
1989-1998.
It results that, in the period 1989-1998, our economy mainly featured (39 of 60
correlations, i.e. 65%) a strong backward driving power, out of which in 12 cases this was
accompanied by a strong driving power in the forwards sector, too (food industry – 2 cases
and the remaining branches – 10 cases); in the other 27 cases, weak forward driving power
(food industry – 8, textiles and ready-made clothes –9 and hotels and restaurants – 10).
0,600
1,100
1,600
2,100
2,600
1989 1990 1991 1992 1993 1994 1995 1996 1997 1998
(Wh
ole
econ
om
y =
1)
ASPEF PABT TEXC RRAMFIT-IEA-02
9
At the same time, agriculture was characterized by weak backward driving power
but strong forward driving power; at the same time, trade featured weak forward driving
power.
REFERENCES.
Artis, M., Surinach, J., Pons, J., (1994): El sistema agroalimentario catalan en la tabla Input-
Output de 1987, in “Investigation Agraria-Economia” (IAE), INITAA, Vol. 9, nr.1.
Dumitru,D., Ionescu, L., Popescu, M.,Toderoiu, F.,(1997): Agricultura României – tendinţe pe
termen mediu şi lung, Ed. Expert, Bucureşti.
Enciso,J.P.,Sabate,P.,(1995): Una vision del complejo de producccion agroalimentario
espanol en la decada de los ochenta, în ”Investigation Agraria-Economia’(IAE), INITAA,
Vol.10, No. 3, Madrid.
Gavrilescu, D., Giurcă, D. (coord.) (2000): Economia Agroalientară, Ed. Expert,Bucureşti.
Greig Smith,W.,(1984): Economics and Management of Food Processing, AVI Publ.Co.Inc.
Westport.
Hartmann, M. ,(1993): Überlegungen zur Wettbewerbsfähigkeit des deutschen
Ernährungsgewerbes, în “Agrarwirtschaft”(AW), Jg. 42, Heft 6.
Eiteljoerge,U., Hartmann,M. (1999): Central and Eastern European Food Chains
Competitivness, în:‘The European Agro-food System and the Challenge of Global
Competition‘, ISMEA,Rome.
Popescu, M. (2001): Concentrarea producţiei agricole - tendinţe convergente şi divergente cu
UE, în: Evoluţia sectorului agroalimentar în România – convergenţe multicriteriale cu UE, Vol.
17 ESEN, Ed. Expert, Bucureşti.
Schmitt, G.(1997): Unvollkommene Arbeitsmärkte, Produktivität und Effizienz des
Faktoreinzatzes in der Landwirtschaft. în ’Agrarwirtschaft‘, Jg. 46, H. 10.
Toderoiu,F.,(2002): Sectorul agroalimentar în România - mutaţii structurale multicriteriale Comparative , în: Evoluţia sectorului agroalimentar în România – convergenţe multicriteriale
cu UE, Vol. 17 ESEN, Ed. Expert, Bucureşti.
Toderoiu,F.,(2002): Agricultura - Resurse şi Eficienţă. (O retrospectivă semiseculară), Ed.
Expert, Bucureşti.
Toderoiu,F., Ştefănescu, C. (2002): Agri - Food Sector in Romania - Loss on Internal and
External Competitivness, în: 'Romanian Journal of Economic Forecasting', Nr. 1, CEID - NIER,
Bucharest.
Toderoiu, F. (2003): Evoluţia sectorului agroalimentar al României - decalaje faţă de Uniunea
Europeană, în: Zahiu, L.(coord) (2003) 'Structurile agrare şi viitorul politicilor agricole', Ed.
Economică, Bucureşti.
10
ANNEX 3.1r ..0 5 c ..0 9
Variation coefficients of the difusion and absorbtion power in Romania's economy, 1989 - 98
89 90 91 92 93 94 95 96 97 98
0 1 2 3 4 5 6 7
8 9
0 ASPEF
1 PABT
2 TEXCRda
0.868
1.074
0.929
0.707
1.294
1.127
0.780
1.031
1.008
0.745
1.258
1.178
0.882
1.080
1.161
0.618
1.135
1.123
0.899
1.099
1.170
0.615
1.098
1.119
0.907
1.076
1.123
0.686
1.111
1.096
0.914
1.096
1.057
0.718
1.124
1.091
0.868
1.065
1.057
0.746
1.165
1.099
0.866
1.070
1.083
0.796
1.073
1.113
0.880
1.103
1.078
0.808
1.023
1.107
0.937
1.111
1.085
0.777
1.048
1.041
3 COM
4 HRAT
5 RRAM
89 90 91 92 93 94 95 96 97 98
0 1 2 3 4 5 6 7 8 9
0 ASPEF
1 PABT
2 TEXCRaa
1.274
0.935
0.640
0.373
0.382
2.396
1.119
0.976
0.684
0.397
0.404
2.421
1.081
0.800
0.733
0.375
0.381
2.630
1.085
0.846
0.755
0.389
0.401
2.525
1.322
0.939
0.748
0.437
0.452
2.103
1.364
1.023
0.780
0.472
0.489
1.873
1.208
0.938
0.817
0.452
0.491
2.094
1.091
0.991
0.816
0.430
0.483
2.189
1.091
1.007
0.852
0.443
0.494
2.113
1.160
0.940
0.905
0.460
0.507
2.028
3 COM
4 HRAT
5 RRAM
Rda0c
Rda,5 c
=mean( )Rda0 1.1094 Raa0c
Raa,5 c
=mean( )Raa0 2.2372
=stdev ( )Rda0 0.0326 =stdev ( )Raa0 0.23
=.stdev ( )Rda0
mean( )Rda0100 2.94 =.stdev ( )Raa0
mean( )Raa0100 10.28CVda
r
4.54
2.05
6.26
8.85
7.24
2.94
CVaar
8.58
7.04
9.65
8.16
10.78
10.28
0 ASPEF 0 ASPEF
1 PABT 1 PABT
2 TEXC 2 TEXC
3 COM 3 COM
4 HRAT 4 HRAT
5 RRAM 5 RRAM
10.78
2.05
CVdar
CVaar
10
50 r
11
i ..0 6 j ..0 6 r ..0 5 c ..0 5 ANNEX 3.2
CI-aspefv CI-pibt CI-texc CI-com CI-hrat CI-rram CI-tram APPLICATION 1989p89
0 1 2 3 4 5 6
0 CI-aspefv
1 CI-pabt
2 CI-texc
M89
48.223
20.130
0.376
0.001
0.028
42.927
111.684
125.239
27.110
0.223
0.001
0.015
10.707
163.294
8.380
0.064
40.761
0.001
0.026
17.578
66.809
0.004
6.770
1.148
0.001
0.006
8.606
16.534
4.694
45.635
0.066
0.001
0.747
4.154
55.296
5.861
5.656
18.789
0.003
2.414
908.060
940.780
192.401
105.365
61.363
0.008
3.236
992.032
1354.397
3 CI-com
4 CI-hrat
5 CI-rram
6 CI-TRAM
X89 ( )226.902 214.226 116.992 54.039 63.826 1399.501 2075.486 PF-TRAM
TUTIL
0 ASPEFV
1 PABT
2 TEXC
Y89
230.656
267.561
134.388
4.030
69.397
1593.632
2299.663
3 COMU89
,i j
M89,i j
X89,0 j
W89,i j
M89,i j
Y89,i 04 HRAT
5 RRAM
6 TRAM
0 ASPEFV
1 PABT
2 TEXC
=U89
0.213
0.089
0.002
4.407 106
1.234 104
0.189
0.492
0.585
0.127
0.001
4.668 106
7.002 105
0.05
0.762
0.072
5.47 104
0.348
8.548 106
2.222 104
0.15
0.571
7.402 105
0.125
0.021
1.851 105
1.11 104
0.159
0.306
0.074
0.715
0.001
1.567 105
0.012
0.065
0.866
0.004
0.004
0.013
2.144 106
0.002
0.649
0.672
0.093
0.051
0.03
3.855 106
0.002
0.478
0.653
3 COM
4 HRAT
5 RRAM
6 TRAM
0 ASPEFV
1 PABT
2 TEXC
=W89
0.209
0.075
0.003
2.481 104
4.035 104
0.027
0.049
0.543
0.101
0.002
2.481 104
2.161 104
0.007
0.071
0.036
2.392 104
0.303
2.481 104
3.747 104
0.011
0.029
1.734 105
0.025
0.009
2.481 104
8.646 105
0.005
0.007
0.02
0.171
4.911 104
2.481 104
0.011
0.003
0.024
0.025
0.021
0.14
7.444 104
0.035
0.57
0.409
0.834
0.394
0.457
0.002
0.047
0.622
0.589
3 COM
4 HRAT
5 RRAM
6 TRAM
TRAM
µc
r
U89,r c
ωr
c
W89,r c
=µ
0.492
0.762
0.571
0.306
0.866
0.672
=ω
0.834
0.394
0.457
0.002
0.047
0.622
r ..0 5 c ..0 5
I
1
0
0
0
0
0
0
1
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0
0
0
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U,r c
U89,r c
12
sr,0 c
1
.U,0 c
.0.01 L,c 0
.L,0 0
X89( ),0 0
Y89,0 0
sr,3 c
1
.U,3 c
.0.01 L,c 3
.L,3 3
X89,0 3
Y89,3 0
sr,1 c
1
.U,1 c
.0.01 L,c 1
.L,1 1
X89,0 1
Y89,1 0
sr,4 c
1
.U,4 c
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X89,0 4
Y89,4 0
sr,2 c
1
.U,2 c
.0.01 L,c 2
.L,2 2
X89,0 2
Y89,2 0
sr,5 c
1
.U,5 c
.0.01 L,c 5
.L,5 5
X89,0 5
Y89,5 0
semnif. : sr < 10
0 ASPEFV (3 +)
1 PABT (3 +)
2 TEXC (1 +)=sr
3.421
11.216
446.487
1.692 104
8.623 103
2.077
1.255
7.839
711.499
1.597 104
1.518 104
7.863
10.253
1.836 103
2.102
8.724 103
4.827 103
2.615
9.924 103
8.017
34.869
4.027 103
9.664 103
2.468
9.988
1.405
716.353
4.76 103
90.695
6.039
174.404
246.817
54.869
3.477 104
617.132
0.599
3 COM (0 +)
4 HRAT (0 +)
5 RRAM (6 +)
sc,r 0
1
.U,r 0
.0.01 L,0 r
.L,0 0
X89,0 0
Y89,0 0
sc,r 3
1
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X89,0 3
Y89,3 0
sc,r 1
1
.U,r 1
.0.01 L,1 r
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X89,0 1
Y89,1 0
sc,r 4
1
.U,r 4
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.L,4 4
X89,0 4
Y89,4 0
sc,r 2
1
.U,r 2
.0.01 L,2 r
.L,2 2
X89,0 2
Y89,2 0
sc,r 5
1
.U,r 5
.0.01 L,5 r
.L,5 5
X89,0 5
Y89,5 0
semnif. : sc < 100
0 ASPEFV (5 +)
1 PABT (5 +)
2 TEXC (3 +)=sc
3.421
8.224
442.746
1.665 105
5.919 103
3.882
1.715
7.839
964.63
2.148 105
1.421 104
20.091
10.34
1.354 103
2.102
8.663 104
3.333 103
4.928
1.007 103
0.595
3.51
4.027 103
671.652
0.468
14.59
1.501
1.038 103
6.848 104
90.695
16.486
93.56
96.985
29.187
1.829 105
227.183
0.599
3 COM (0 +)
4 HRAT (1 +)
5 RRAM (6 +)
13
i ..0 6 j ..0 6 r ..0 5 c ..0 5 ANNEX 3.3
CI-aspefv CI-pibt CI-texc CI-com CI-hrat CI-rram CI-tram APPLICATION 1992p92
0 1 2 3 4 5 6
0 CI-aspefv
1 CI-pabt
2 CI-texc
M92
468.596
153.297
3.187
0.215
0.405
516.763
1142.463
775.820
209.895
3.075
0.390
0.223
136.900
1126.303
23.767
0.158
250.197
0.064
0.219
124.092
398.497
0.027
79.718
10.097
0.006
0.137
97.529
187.514
6.607
209.345
0.347
0.082
5.537
20.268
242.186
28.360
40.014
127.881
3.103
25.632
6063.381
6288.371
1303.177
692.427
394.784
3.860
32.153
6958.933
9385.334
3 CI-com
4 CI-hrat
5 CI-rram
6 CI-TRAM
X92 ( )2290.391 1526.299 579.299 916.245 372.996 9615.297 15300.527 PF-TRAM
TUTIL
0 ASPEFV
1 PABT
2 TEXC
Y92
2478.533
1910.071
878.767
25.793
435.809
11867.997
17596.969
3 COMU92
,i j
M92,i j
X92,0 j
W92,i j
M92,i j
Y92,i 04 HRAT
5 RRAM
6 TRAM
=U92
0.205
0.067
0.001
9.387 105
1.768 104
0.226
0.499
0.508
0.138
0.002
2.555 104
1.461 104
0.09
0.738
0.041
2.727 104
0.432
1.105 104
3.78 104
0.214
0.688
2.947 105
0.087
0.011
6.548 106
1.495 104
0.106
0.205
0.018
0.561
9.303 104
2.198 104
0.015
0.054
0.649
0.003
0.004
0.013
3.227 104
0.003
0.631
0.654
0.085
0.045
0.026
2.523 104
0.002
0.455
0.613 6 TRAM
=W92
0.189
0.08
0.004
0.008
9.293 104
0.044
0.065
0.313
0.11
0.003
0.015
5.117 104
0.012
0.064
0.01
8.272 105
0.285
0.002
5.025 104
0.01
0.023
1.089 105
0.042
0.011
2.326 104
3.144 104
0.008
0.011
0.003
0.11
3.949 104
0.003
0.013
0.002
0.014
0.011
0.021
0.146
0.12
0.059
0.511
0.357
0.526
0.363
0.449
0.15
0.074
0.586
0.533
6 TRAM
µc
r
U92,r c
ωr
c
W92,r c
=µ
0.499
0.738
0.688
0.205
0.649
0.654
=ω
0.526
0.363
0.449
0.15
0.074
0.586r ..0 5 c ..0 5
I
1
0
0
0
0
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U,r c
U92,r c
14
sr,0 c
1
.U,0 c
.0.01 L,c 0
.L,0 0
X92( ),0 0
Y92,0 0
sr,3 c
1
.U,3 c
.0.01 L,c 3
.L,3 3
X92,0 3
Y92,3 0
sr,1 c
1
.U,1 c
.0.01 L,c 1
.L,1 1
X92,0 1
Y92,1 0
sr,4 c
1
.U,4 c
.0.01 L,c 4
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X92,0 4
Y92,4 0
sr,2 c
1
.U,2 c
.0.01 L,c 2
.L,2 2
X92,0 2
Y92,2 0
sr,5 c
1
.U,5 c
.0.01 L,c 5
.L,5 5
X92,0 5
Y92,5 0
semnif. : sr < 10
0 ASPEFV (2 +)
1 PABT (2 +)
2 TEXC (1 +)=sr
3.93
15.128
609.688
299.834
6.462 103
1.977
1.598
7.33
421.413
110.149
7.801 103
4.972
19.807
3.741 103
1.937
254.764
3.038 103
2.081
2.758 104
11.731
77.053
4.297 103
7.684 103
4.19
45.884
1.819
912.716
128.029
76.503
8.207
273.666
243.293
63.252
87.207
427.942
0.699
3 COM (0 +)
4 HRAT (0 +)
5 RRAM (6 +)
sc,r 0
1
.U,r 0
.0.01 L,0 r
.L,0 0
X92,0 0
Y92,0 0
sc,r 3
1
.U,r 3
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.L,3 3
X92,0 3
Y92,3 0
sc,r 1
1
.U,r 1
.0.01 L,1 r
.L,1 1
X92,0 1
Y92,1 0
sc,r 4
1
.U,r 4
.0.01 L,4 r
.L,4 4
X92,0 4
Y92,4 0
sc,r 2
1
.U,r 2
.0.01 L,2 r
.L,2 2
X92,0 2
Y92,2 0
sc,r 5
1
.U,r 5
.0.01 L,5 r
.L,5 5
X92,0 5
Y92,5 0
semnif. : sc < 100
0 ASPEFV (4 +)
1 PABT (4 +)
2 TEXC (3 +)=sc
3.93
12.066
583.605
8.653 103
4.579 103
3.602
2.006
7.33
506.529
3.99 103
6.936 103
11.377
20.693
3.113 103
1.937
7.684 103
2.246 103
3.962
955.138
0.323
2.554
4.297 103
188.239
0.264
64.861
2.047
1.235 103
5.226 103
76.503
21.142
150.639
106.794
33.37
1.38 103
166.844
0.699
3 COM (0 +)
4 HRAT (1 +)
5 RRAM (6 +)
15
i ..0 6 j ..0 6 r ..0 5 c ..0 5 ANNEX 3.4
CI-aspefv CI-pibt CI-texc CI-com CI-hrat CI-rram CI-tram APPLICATION 1996p96
0 1 2 3 4 5 6
0 CI-aspefv
1 CI-pabt
2 CI-texc
M96
9692.9
2372.0
62.9
0.7
21.4
5026.7
17176.6
9886.9
6313.9
97.5
0.6
38.6
2427.8
18765.3
311.3
66.5
3297.0
0.3
22.1
1269.6
4966.8
40.3
1731.6
232.0
0.5
126.8
2884.4
5015.6
15.8
2510.0
63.5
0.3
327.7
1117.5
4034.8
342.3
2477.8
2708.0
6.5
1475.2
81775.7
88785.5
20289.5
15471.8
6460.9
8.9
2011.8
94501.7
138744.6
3 CI-com
4 CI-hrat
5 CI-rram
6 CI-TRAM
X96 ( )38125.7 28372.2 8189.5 14988.2 6784.5 144138.7 240598.8 PF-TRAM
TUTIL
0 ASPEFV
1 PABT
2 TEXC
Y96
38475.7
36465.3
14637.3
365.7
8205.2
189355.9
287495.1
3 COMU96
,i j
M96,i j
X96,0 j
W96,i j
M96,i j
Y96,i 04 HRAT
5 RRAM
6 TRAM
=U96
0.254
0.062
0.002
1.836 105
5.613 104
0.132
0.451
0.348
0.223
0.003
2.115 105
0.001
0.086
0.661
0.038
0.008
0.403
3.663 105
0.003
0.155
0.606
0.003
0.116
0.015
3.336 105
0.008
0.192
0.335
0.002
0.37
0.009
4.422 105
0.048
0.165
0.595
0.002
0.017
0.019
4.51 105
0.01
0.567
0.616
0.084
0.064
0.027
3.699 105
0.008
0.393
0.577 6 TRAM
=W96
0.252
0.065
0.004
0.002
0.003
0.027
0.06
0.257
0.173
0.007
0.002
0.005
0.013
0.065
0.008
0.002
0.225
8.203 104
0.003
0.007
0.017
0.001
0.047
0.016
0.001
0.015
0.015
0.017
4.106 104
0.069
0.004
8.203 104
0.04
0.006
0.014
0.009
0.068
0.185
0.018
0.18
0.432
0.309
0.527
0.424
0.441
0.024
0.245
0.499
0.483
6 TRAM
µc
r
U96,r c
ωr
c
W96,r c
=µ
0.451
0.661
0.606
0.335
0.595
0.616
=ω
0.527
0.424
0.441
0.024
0.245
0.499r ..0 5 c ..0 5
I
1
0
0
0
0
0
0
1
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U,r c
U96,r c
16
sr,0 c
1
.U,0 c
.0.01 L,c 0
.L,0 0
X96( ),0 0
Y96,0 0
sr,3 c
1
.U,3 c
.0.01 L,c 3
.L,3 3
X96,0 3
Y96,3 0
sr,1 c
1
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X96,0 1
Y96,1 0
sr,4 c
1
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X96,0 4
Y96,4 0
sr,2 c
1
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.L,2 2
X96,0 2
Y96,2 0
sr,5 c
1
.U,5 c
.0.01 L,c 5
.L,5 5
X96,0 5
Y96,5 0
semnif. : sr < 10
0 ASPEFV (2 +)
1 PABT (3 +)
2 TEXC (1 +)=sr
2.803
15.197
638.311
1.329 103
2.03 103
4.194
2.064
4.22
306.651
1.154 103
834.875
6.461
18.934
117.109
2.573
666.007
423.299
3.566
267.711
8.233
68.113
731.174
135.085
2.874
309.075
2.571
112.631
551.75
23.378
3.357
302.104
55.084
55.733
540.952
110.899
0.962
3 COM (0 +)
4 HRAT (0 +)
5 RRAM (6 +)
sc,r 0
1
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X96,0 0
Y96,0 0
sc,r 3
1
.U,r 3
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X96,0 3
Y96,3 0
sc,r 1
1
.U,r 1
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.L,1 1
X96,0 1
Y96,1 0
sc,r 4
1
.U,r 4
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X96,0 4
Y96,4 0
sc,r 2
1
.U,r 2
.0.01 L,2 r
.L,2 2
X96,0 2
Y96,2 0
sc,r 5
1
.U,r 5
.0.01 L,5 r
.L,5 5
X96,0 5
Y96,5 0
semnif. : sc < 100
0 ASPEFV (4 +)
1 PABT (5 +)
2 TEXC (3 +)=sc
2.803
11.517
435.957
3.918 104
1.28 103
5.458
2.726
4.22
276.663
4.49 104
695.576
11.108
27.731
129.806
2.573
2.877 104
390.531
6.795
9.074
0.211
1.576
731.174
2.884
0.127
490.692
3.089
122.085
2.584 104
23.378
6.936
232.297
32.089
29.332
1.223 104
53.86
0.962
3 COM (0 +)
4 HRAT (3 +)
5 RRAM (6 +)
17
sr,0 c
1
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X98( ),0 0
Y98,0 0
sr,3 c
1
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X98,0 3
Y98,3 0
sr,1 c
1
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X98,0 1
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sr,4 c
1
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X98,0 4
Y98,4 0
sr,2 c
1
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X98,0 2
Y98,2 0
sr,5 c
1
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X98,0 5
Y98,5 0
semnif. : sr < 10
0 ASPEFV (2 +)
1 PABT (3 +)
2 TEXC (1 +)=sr
2.402
23.234
739.105
1.544 103
983.56
4.367
2.077
4.802
674.426
449.601
472.214
7.512
28.846
284.528
3.446
354.138
316.267
4.681
55.575
9.634
52.626
20.399
237.342
4.374
255.262
3.517
45.216
1.412 103
23.999
3.758
243.89
89.013
96.297
618.304
140.924
1.184
3 COM (0 +)
4 HRAT (0 +)
5 RRAM (6 +)
sc,r 0
1
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X98,0 0
Y98,0 0
sc,r 3
1
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X98,0 3
Y98,3 0
sc,r 1
1
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X98,0 1
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sc,r 4
1
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X98,0 4
Y98,4 0
sc,r 2
1
.U,r 2
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X98,0 2
Y98,2 0
sc,r 5
1
.U,r 5
.0.01 L,5 r
.L,5 5
X98,0 5
Y98,5 0
semnif. : sc < 100
0 ASPEFV (4 +)
1 PABT (5 +)
2 TEXC (4 +)=sc
2.402
15.959
355.948
4.983 104
628.05
5.007
3.03
4.802
473.642
2.115 104
439.682
12.563
59.924
405.153
3.446
2.374 104
419.105
11.144
1.721
0.204
0.784
20.399
4.689
0.155
400.09
3.779
34.113
7.148 104
23.999
6.754
212.81
53.31
40.605
1.738 104
78.622
1.184
3 COM (1 +)
4 HRAT (3 +)
5 RRAM (6 +)