Finnish agriculture in European integration: A firm level approach Jukka Kola, Juha Marttila and Jyrki Niemi Kola, J., Marttila, J. & Niemi, J. 1992. Finnish agriculture in European integration: A firm level approach. Agric. Sci. Finl. 1: 5-14. (Agric. Econ. Res. Inst., Luutnantintie 13, SF-00410 Helsinki, Finland.) European integration and the possible application of the Common Agricultural Policy, CAP, will substantially affect Finnish agriculture. Although the major principles and means of the CAP and the Finnish agricultural policy are quite similar, Finnish agriculture would face fundamental adjustment needs primarily due to the high level of domestic prices and costs. The key factor in the adaptation process would be the overall structural adjustment in terms of production costs, development of farm size, internal and external comparative advantage, and regional reallocation of resources. The length of run analysis, especially w.r.t. to capital requirements, is decisive. Major disadvantages of the Finnish agriculture are unfavourable climate and farm structure. The study indicates that cereal production in particular suffers from the disadvantages through high unit costs of production. Milk production has better capabilities to adjust in European integration, but not without problems, either. Key words: integration, structural adjustment, comparative advantage, production costs, economies of scale, EC, CAP, Finland Introduction The earlier trade policy arrangements, e.g. within the GATT, EFTA and the possible EEA, have not altered the competitive position or border protection of Finnish agriculture to any significant extent. Concrete requirements for change in agricultural policy will be brought about by the current GATT Uruguay round, if ever completed. Nevertheless, the most important factor fundamentally influencing Finnish agriculture would be the possible EC- membership and the application of the Common Agricultural Policy, CAP, in Finland. The major principles and means of the CAP and the Finnish agricultural policy are quite similar. However, the application of the CAP would be difficult due to the high level of producer prices and production costs in Finland. This study concentrates on identifying and comparing the essential factors shaping the farm level profitability in Finland and the EC. The theoretical framework relies on traditional neo- classical microeconomic theory of the firm (Chapter 2). In addition, the concept of com- parative advantage is employed to assess the re- source allocation considerations between the EC and Finland and within Finland. In detail analyses of profitability in cereal, pig and milk sectors are presented in Chapters 3 to 5. Cost-price squeeze plays the key role in the analysis. The importance of time interval as the adjustment factor is underlined. Possibilities and problems of the overall structural adjustment of the Finnish agriculture in terms of production costs, development of farm size, comparative advantage between production lines, and regional reallocation 5 Agric. Sei. Finl. 1 (1992) https://www.c-info.fi/en/info/?token=dlZOmmgEGRG2XNR2.OP-zWNYzwDkHR-rNnTk-5Q.eK-z_l5jdjv6Ox42jMCy6s6xlnvgrZnQUKJ0c9-MaRNbfhMvfGat_1RB85nAN-2VuSA3XqoUmNEjf5bU31HmfMx-l262JcMTMRNs1OTDunhFplBhUV7IrkVDsCF404pliMDWcvZYz9vNw3yHBKRiVA7EFlvk1IY_xhQuGfNhCvwvk5N3Z_SUH4NQMvPWrNFgsV9BbgpLJaW3UYlwS6g8WvgS3Jh38L6zX4XNBCaPDkFYQF3VehP4Pn9X7S6Pk660xmXCGEO_FDrxdXfYOyQuWktd-jya_qVNCw74bzgGIgo of production resources is briefly examined in Chapter 6. Finally, conclusions and future research needs are presented. Theoretical framework Integration aims at securing economic growth and increasing society's welfare. Enhanced specializations according to comparative advantage, more efficient utilization of economies of scale, direct cost savings and increased competition represent some of the expected economic benefits. According to the theories based on comparative advantage, regional differences in relative pro- duction costs are induced by regional differences in scarcity of production factors. A country specializes to products which it can produce by effectively utilizing its relatively abundant and inexpensive production factor. Hence, trade struc- ture depends on differences in production possibilities by country and production branch. In order to mitigate the theoretical problems in explaining why countries also trade products of the same branch, contemporary trade models often include components from imperfect competition, scale benefits, differentiation in products and differences in consumer preferences . Because comparative, or competitive, advantage is not easily measured, analysts have often resorted to a static indicators such as production costs to quantify competitiveness. However, there remain considerable difficulties also in international comparisons of production costs (see e.g. Stanton 1986). The neoclassical firm theory assumes that a firm operates in a pursuit to optimize goals w.r.t. production possibilities. In particular, it assumes that a firm aims at profit maximization. In reverse, this can be presented as a long run cost mini- mization problem: min S p zi ' ' 2,...Z n s.t. (a) y = f(z ]; ...,zn ) >y° (b)z i >0(i=1,...,n) where p is a price for a production factor i, z quantity and y° preferred production volume in a certain time period (Beattie and Taylor 1985). The assumptions concerning production tech- nology include, inter alia, differentiable pro- duction functions and true quasiconcavity (see Beattie and Taylor 1985; Chambers 1989). Now, the Lagrangian can be written: L=2 [y°-f(z„...,z n )] The first order conditions to minimize the Lagrangian are: SL/sz=p.-^f=o(i=l,...,n) BL/SX=y o-f(z |V ..,zn)=o The optimal value of the Lagrange multiplier illustrates a change in costs as production volume changes, i.e. long run marginal cost LMC. Because the optimal input combination z," is a function of input prices and production volume, total costs C are: C=lpz*=lpz*(p,y) ,ii , i i €(p,y)=C(p„...,pn)y) How production volume affects demand for inputs (ceteris paribus) depends on a form of the production function. In the case of a function of linear homogeneity, a growth in production volume leads to increased input use with stable relative shares between inputs (Gravelle and Rees 1990). On the other hand, when relative prices of inputs change, use of the input becoming cheaper increases, provided that the production volume remains stable. Lower p. reduces total costs in relation to cost elasticity Ec .: Ep c =BC/8p i • p/C=z i*p/C Decrease in average costs can also take place through increasing returns to scale as production 6 Agne. Sei. Finl. 1 (1992) expands. This is realized, if the following equation equals less than one: SLTC/8y • y/LTC=LMC/LAC The same can be seen in Figure 1. The long run average cost curve LAC is at a minimum when the output is y 2. The cost curve is said to illustrate diseconomies of scale at the output y>y2 and economies of scale at the output y5O ha Cost item: Variable 1 784 1 917 1 926 Labour » 728 1 279 882 Equipment 1 518 1 585 1 334 Building 517 386 300 Land interest 609 1 153 1 153 Other 507 670 762 Total 5 663 6 990 6 357 Yield, kg/ha 6 180 2> 3 832 3 659 4 > Cost, FIM/kg 0.92 1.82 1.74 "FIM 44.10/h 2) barley 57 %, wheat 38 %, rye 5 % 3) barley 37 %, oats 12 %, wheat 35 %, rye 16 % 4) barley 34 %, oats 14 %, wheat 34 %, rye 18 % Were the producer prices lowered by 50 %, profitability of Finnish farms would be ruined. Return would cover only labour and variable costs. If the average yield rises to 4 500 kg, production cost falls to FIM 1.41/kg on the largest farms. However, this improvement would not be sufficient, either, for Finnish producers to adapt to the lower price level of the EC. A scale effect seems to be very significant in cereal production in e.g. machinery and labour costs (Fig. 4). Machinery and equipment cost are above FIM 2 000/ha on a 21 hectare grain farm, but only half of that on a triple-size farm. The indivisibility problem of key production factors, e.g. machinery, is evident as the farm size grows from 14 to 21 hectares. Small farms and low yields would result in a very weak competitive position of Finnish cereal production in the EC markets. The required structural development to the direction of farms with clearly more than 100 hectares is hindered by high priced farm land. Lower cereal prices would cut land price, but, at the same time, they would deteriorate loan repayment ability and collaterals on many farms. Fig. 3. Average yields ofwheat and barley in 1990. 8 Agric. Sei. Finl. 1 (1992) The opportunities of Finnish cereal production lie on feed grain production in most suitable cultivation regions. The extent of animal husbandry would primarily also determine the possibilities of cereal production. It would be very difficult to maintain the income goal for full-time grain farms. Even on the largest farms, other sources of income would evidently be required to finance investments and secure the income level. Pork production In the case of pork, the producer price in Finland has been 50 to 60 % higher than the average producer price in the EC-countries. Therefore, the EC-membership would cause a drastic drop in the price received by pork producers. In addition, potential suppliers of pork from the EC-countries, e.g. Denmark and the Netherlands would be able to penetrate into the Finnish market. The price for feed plays an important role in the survival of Finnish pork producers. Feed cost amounts to 65 % of total production cost. Feed cost in the EC is only half of that in Finland. The Finnish pork producers would enjoy lower feed cost as an EC-member. Eventually, this would lead to lower production costs. If the producer price ofpork wouldbe at the same level with the EC-countries, the income of pork producers would be severely affected even though input prices are also assumed at the EC-level (Marttila and Niemi 1991). In the EC, theFinnish feeder pig finishing farms with more than 500 pig places would get farm income of FIM 93 000; farms with 250 to 499 places FIM 87 000; and the farms with less than 250 pig places FIM 48 000 (Fig. 5). Due to the heavy debt burden, the income received by an average farm can barely pay the interest payments to service the debts. Even the largest pig farms would have only FIM 20 000 after interest payments (Fig. 5). However, there is considerable variation in profit among the farms, and the uppermost quarter of the farms can retain FIM 80 000/farm after interest payments. The combined production farms with more than 250 pig places would fare about as well, or poorly, as the largest feeder pig finishing farms, but smaller Fig. 4. Equipment and labour cost on cereal farms in southern Finland in 1989, FIM/ha. Fig. 5. Farm income and interest payments in different pig farms in the EC-alternative. 9 Agric. Sei. Finl. 1 (1992) units would face serious income problems. In the feeder pig production, all size groups (less than 30, 30 to 49 sows, and more than 49 sows) would have a loss after interest payments. Even the most profitable farms would retain only about FIM 20 000 per farm after interest payments. Due to high fixed costs, these farms cannot afford a big drop in the price of pig, which, however, would be vital for feeder pig finishing farms. Using farm models, Marttila and Niemi (1991) studiedproduction costs when feed price is reduced by 50 %. Fertility of 22 pigs per sow and year and feed conversion rate of 2.7 f.u./meat-kg were used for the calculation of optimal production cost. The most efficient Finnish farms actually operate in these conditions. The calculation were based on the feeder pig production farms with 30, 50 and 100 sows, and feeder pig finishing farms with 150, 500 and 1 000 pig places. The price of pig would drop from FIM 380 to about 280. If the feeder pig finishing farm buys pigs from the pig production farm with 100 sows at the production cost of FIM 260, the production cost of pork will be as follows: 150 pigs 10.55 FIM/kg; 500 pigs 9.66 FIM/kg; I 000 pigs 9.48 FIM/kg. In addition to feed cost, production cost of pork also correlates with the size of piggery and production technology. Larger piggeries and better technology will result in lower production cost due to labour savings and improved feed conversion rate (K.ÖGL and Plesser 1988). Denmark and the Netherlands have increased efficiency through larger piggeries, which have thousands of pigs, i.e. economies of scale. Relatively small piggeries in Finland lead to high production cost of pork. Finnish piggeries have a competitive edge in the biological and technological efficiency. The gen- etic quality of pigs, production environment and feeding regime are up to the Danish or Dutch standards. Furthermore, the quality of pig meat (low in fat and residues) in Finland is high. Thus, it is possible to differentiate the pork produced in Finland from the imported one, but it is hard to gauge whether consumers are willing to pay a higher price for quality. Milk production Both in Finland and in the EC, milk production is the most important line of production both in terms of economic and rural policy aspects. Milk production in Finland suffers from the unfavourable structure. The average herd size of 11 cows is only half of that in Sweden or one third of that in Denmark (Kola et al. 1991). Disadvantageous climate has indirect effects on milk production through high feed and building costs. Nevertheless, yield per cow, 5 713 kg, is exceeded only by Sweden, Denmark and the Netherlands. Fat surplus has been the persistent problem both in Finland and in the EC. Slight alterations in and slow effects of pricing and breeding have not cut fat surplus, which is likely to remain when consumers increasingly favor low fat products. Producers suffer from fat penalties beyond their (cows') ability to adapt. Milk production is labour intensive in Finland and therefore chances for additional income are rather slim. Hence, milk production alone has to provide sufficient income for the family farm to a larger extent than any other production line. On the other hand, structural improvements would facilitate marked cost savings through economies of scale and changes in input mix. The evident need for larger farms in Finland is emphasized by a recent Swedish study stating that 60 to 80 cows are required for profitable production (Belotti et al. 1991). In order to avoid emerging capital constraints in the structural development and adjustment process, the prevailing dairy farm structure of competitive capability should be fully utilized. Consequently, regional resource reallocation within the milk sector should remain quite limited in the future. According to the farm accountancy results, production costs decrease from FIM 3.50/1 to 2.40/1 as the herd size increases from the current average of 11 to 32 cows (Fig. 6; producer price FIM 3/1). In the EC, producer prices of Denmark and Germany are close to FIM 2/1 (OECD 1991). However, transport costs will alleviate price differences markedly for 10 Agric. Sei. Finl. 1 (1992) fluid milk, but less so for dairy products. The farm models (MTTL 1991 b) indicate that production costs per liter of milk diminish on the index scale 100-83-73-65 as the herd size is 8-16-32-60 cows, respectively. A significant drop occurs in labour cost, share of which falls from 33 % in the smallest herd to 26 % in the largest. Although milk production is less dependent on feed costs and less flexible to adjust than pork production, its feeding practices are to be changed, too, if the price ratio of feed grain and concentrates to on-farm produced roughage considerably changes, as is expected in the EC-alternative. The need for change is underpinned by the quite unaltered production costs of roughage. In 1987- 90, from crop failures to record harvests, the production costs of feed varied steeply: barley FIM 2.80/feed unit to 1.67; hay 2.97 to 2.70; silage 2.38 to FIM 1.95/f.u. (Helander 1991). In the membership alternative, milk price would on the average drop by 40 % and feed prices, roughage excluded, by 50 %. Hence, feed unit requirement wouldbe fullfilled to a larger extent by feed grain and concentarates instead of silage, use of which is based on high nitrogen input trans- ferred to protein in grass. However, silage feeding would maintain its profitability to hay-compound feeding (Table 2). Yet, the advantage slightly narrows. Table 2. Cost comparison in heavy silage and hay-com- pound feeding; currently and at the EC prive level: decline of40% in returns and animal assets and 50% in cereal and compound. Currently EC-prices Total returns FIM/cow 21118 12732 Milkprice FIM/1 3.02 1.81 Yield, 1/cow 5980 5980 Variable costs silage compound silage compound FIM/cow 13437 15370 9887 10356 FIM/1 2.24 2.57 1.65 1.73 Returns after variable costs FIM/cow 7681 5748 2845 2376 Source: base calculation by MKL 1991; own calculations. The likely changes in feeding practices can also alter land use. Field area will, however, be used for more extensive roughage production and more effective manure utilization to meet the ever increasing environmental concerns. This will also reduce costs for roughage and improve profitability on dairy farms. Structural adjustment process In the EC, producer prices for major agricultural products are on the average 50 % ofFinnish prices (Kola et al. 1991). Hence, to reach the common European price level would cause enormous problems in Finnish agriculture, its joint sectors and in numerous rural communes. In the short run, farm income would drop rapidly because cost adjustment will follow only after a certain time lag and obviously to a smaller extent. As a whole, the high level of prices, costs and taxes in Finland has to be lowered. In the adjustment process, the variation between production lines is considerable. It determines the Fig. 6. Production costs on dairy farms of different sizes in southern Finland in 1989. 11 Agric. Sei. Finl. 1 (1992) internal comparative advantage and indicates where the support efforts should be directed to further enhance the strongest farm activities w.r.t. the CAP. E.g. animal husbandry will benefit from lower feed prices, but crop production will not face any sig- nificant reductions in fertilizer or other costs (for an input cost comparison, see Sumelius 1991). The extent to which Finnish agriculture can be practised at a markedly lower price level depends largely on the comprehensive structural adjustment capabilities on farms. When strictly considering the profitability of agricultural production (not other sources of income), small inefficient farms are forced to quit as prices drop. Evidently, smaller margins require larger volumes in order to provide sufficient income per farmer. The assumed price drop, even though gradual over a long transition period, would obviously punish most severely young farmers, whose farms in fact are the most capable to manage even with the CAP. These farms have high debt-to-asset ratios due to expensive change of generation arrangements and aggressive investments. However, the investments have been based on the expectations according to the favourable domestic price development. Financial crisis will arise when prices drop. Consequently, collaterals, especially land, lose value, but liabilities stay. Hence, security ratios (Lee et al. 1982) have to be followed closely. Stabilization support will be needed to avoid short-sighted foreclosures on farms able to succeed in the long run. The capital formation and financial situation of fanns depends heavily on the time interval for the adjustment. Financing problems can be mitigated by increased profitability through improvements in technology (Walter-Jörgensen 1985). Both output increasing and cost reducing investments are needed on Finnish farms during the adjustment period. However, there should be fewer but larger farms to divide the shrinking total farm income. Cost efficiency could be considerably improved by economies of scale (Beattie and Taylor 1985). Falling prices and increasing supply ofland, due to decreasing product prices, contributes to improvement of farm structure. There are significant economic benefits to be gained through horizontal and vertical integration. These means are the fastest and most concrete to improve cost efficiency in the overall agribusiness sector. Furthermore, strict supply control measures, e.g. quotas in milk production, should be gradually relaxed or made more flexible to prevent the evident inefficiences and distortions emerged over time in Finnish (Kola 1991) and European agriculture in general (OECD 1990). In jargon, instead of quan- titative supply controls, price should be the means for more efficient resource allocation. Concluding remarks Finland would be the first country entering the EC required to adjust to much lower prices of farm products. The major adjustment need would be a substantial reduction of costs. Among the Nordic countries, Norway would experience a similar pro- cess. This article has shown that barely variable costs are covered by the EC producer prices, but, at the same time, that the structural development can enable cost efficiency of a considerably higher degree. However, due to anticipated problems of indebtness and capital shortage during transition, adjustment process should be based on the prevailing farm structure of efficiency and competitive capability. The internal comparative advantage aspects are partially offset by capital constraints. Structural change has been rapid, and continues (e.g. Walter-Jörgensen 1985), even in the countries which joined the EC with minor needs to adjust. In Denmark, the number of dairy farms declinedfrom 79 000 to 33 000, and the average herd size doubled to 25 cows during the decade after the 1973 membership (Cohen 1986). There were alter- natives for Danish dairy farmers in crop culti- vation, but in Finland corresponding alternatives wouldbe strictly limited. Cereal production especially suffers from the Finnish drawbacks of climate and small farm size which translate into high unit costs. Milk production wouldbe more able to adjust, but difficult problems 12 Agrlc. Sei. Finl. 1 (1992) would arise to cover capital costs and maintain an adequate income level. In Sweden the situation is the opposite: cereal production is considered the most apt and milk the least to succeed in the EC membership (Rabinowicz 1991). This is expected according to comparative advantage. This study has analyzed the farm level constraints and possibilities of the adjustment process required in the EC-option. For a comprehensive analysis, further assessment of e.g. support means and resource reallocation and their costs should be made. Several uncertainties, changes in the CAP and the entire Community included, require continuous updating. Various models can be employed to improve our understanding of the many intertwined factors, but problems persist also with models, indeed. E.g. aggregate econometric models (e.g. in Norway Rickertsen 1991),are handicapped because no empirical evidence of supply responses to price changes of this magnitude exists. Therefore, the firm level analysis as applied in this article, for instance, are on a sound basis. References Abare 1985. Agricultural Policies in the European Community: Their Origins, Nature and Effects on Production and Trade. 361 p. Australia Bureau of Agricultural Economics. Watson Ferguson & Co. Brisbane. Beattie, B.R. & Taylor, C.R. 1985. The Economics of Pro- duction. 258 p. John Wiley & Sons, New York. Belotti, C, Eriksson, T., Fredriksson, A. & Spörndly, R. 1991. Skifta system i mjölkproduktionen? Aktuellt från lantbruksuniversitetet 398. Sveriges lantbruksuniversitet. Uppsala. Chambers, R.G. 1989. Applied Production Analysis. 331 p. Cambridge University Press. New York. Cohen, M. 1986. Denmark in the European Community: A Decade ofAgricultural Change. ERS, USDA. Gravelle, H. & Rees, R. 1990. Microeconomics. 620 p. Bth impression. Longman Group Ltd. HongKong. Helander, J. 1991. HILAn, T-tarkkailunjaMATUn tuloksia. Maatalouskeskusten Liitto. Johnson, M.A. & Pasour, E.C. 1981. An Opportunity Cost View of Fixed Asset Theory and the Overproduction Trap. Amer. J. Agric. Econ. 63: 1-7. Kola, J. 1991. Production Control in Finnish Agriculture: Determinants of Control Policy and Quantitative and Economic Efficiency of Dairy Restrictions. Maatal. tal. tutk.lait. julk. 64. Helsinki. —, Marttila, J. & Niemi, J. 1991. EY:n ja Suomen maata- louden ja maatalouspolitiikan vertailu. Maatal. tai. tutk.lait. tied. 174. Helsinki. Kögl, H. & Plesser F. 1988. Veränderung der Produktions- kosten durch Strukturwandel und technishen Fortschritt in ausgewählten Zweigen der Tierhaltung. Berichte iiber Landwirtschaft 66: 3. Hamburg-Berlin. Lee, W., Boehlje, M., Nelson, A. & Murray W. 1982. Ag- ricultural Finance. Seventh Edition, 1980. Second printing 1982.The lowa State University Press, Ames. Marttila, J. & Niemi, J. 1991. Kotimaisen sianlihantuotan- non kilpailukyky euromarkkinoilla. Mimeogr. [Available at Agric. Econ. Res. Inst.] MKL 1991. Katetuottomenetelmän mukaisia mallilaskelmia. Maatalouskeskusten Liitto. Suunnitteluosaston sarja AlB. MTTL 1991 a. Ajankohtaisia maatalousekonomiaa. Kirjanpi- totilojen tuotantosuunnittaisia tuloksia, tilivuosi 1989. Maatal. tai. tutk.lait. tied. 166. Helsinki. MTTL 1991 b. Viljelmämallilaskelmat. Mimeogr. [Available at Agric. Econ. Res. Inst.] OECD 1990. Reforming Agricultural Policies: Quantitative Restrictions on Production and Direct Income Support. Paris. OECD 1991. Agricultural Policies, Markets and Trade. Monitoring and Outlook 1991. Paris. Rabinowicz, E. 1991. Svenskt lantbruk och förädlingsin- dustri vid ett EG-inträde. Mimeogr. Sveriges Lantbruksu- niversitet. Uppsala. Rickertsen, K. 1991. Norsk jordbruk og EF. Tilbudet av jordbruks varer under en tilpasning til produsentprisene i EF. Norges landbrukshogskole, Institut for okonomi og samfunnsfag, Melding nr. 3. As. Stanton, B.F. 1986. Production costs for cereals in the EC: Comparisons with the United States, 1977-1984. A.E. Res. 86-2. Cornell University, Ithaca, New York. Statens Jordbruksokonomiske Institut. 1990. Economics of Agricultural Enterprises 1988/99. Serie B nr. 73. Koben- havn. Sumelius, J. 1991. Tuotantopanostenhinnat eräissä Euroopan maissa. Maatal. tai. tutk.lait. tied. 162. Helsinki. Vasa vADA, U. & Chambers, R.G. 1986. Investment in U.S. Agriculture. Amer. J. Agric. Econ. 68: 950-960. Walter-Jörgensen, A. 1985 Strukturudviklingen i landbru- get frem til 1995. Statens Jordbrugsokonomiske Institut, Rapport nr. 21. Kobenhavn. Manuscript received December 199J Jukka Kola Juha Marttila Jyrki Niemi Agricultural Economics Research Institute Luutnantintie 13 SF-00410 Helsinki, Finland 13 Agric. Sei. Finl. 1 (1992) SELOSTUS Suomen maatalous Euroopan integraatiossa: tilatason tarkastelu Jukka Kola, Juha Marttila ja Jyrki Niemi Maatalouden taloudellinen tutkimuskeskus Mahdollisen EY-jäsenyyden ja yhteisön yhteisen maatalous- politiikan (CAP) soveltamisen vaikutus Suomen maatalou- den toimintaedellytyksiin olisi huomattava. Näin olisi siitä huolimatta, että EY:n maatalouspolitiikan keskeiset tavoit- teet ja keinot ovat melko samankaltaisia kuin Suomen maa- talouspolitiikassa. Maataloustuotannon edellytykset ovat Suomessa paljon huonommat kuin EY:n tärkeimmissä tuottajamaissa. Kes- keinen haittatekijä on maamme maantieteellisen sijainnin ai- heuttama heikko tuottavuus, mikä ilmenee ensisijaisesti käy- tettyjen tuotantopanosten määrään nähden alhaisina hehtaa- risatoina. Tällöin viljan yksikkökustannukset ovat korkeam- mat kuin EY:ssä, mikä kertautuu kotieläintuotantoon korkei- na rehun hintoina. EY-jäsenyyden keskeisin vaikutus maatilatasolla olisi tuottajahintojen muutos. Se merkitsisi huomattavaa pudo- tusta vallitsevasta suomalaisesta hintatasosta. EY-jäsenyys vaikuttaisi välittömästi myös eräiden maatalouden tuotanto- panosten hintoihin ja sitä kautta maatalouden kustannuksiin. Alhaisemmat tuote- ja panoshinnat merkitsisivät muutosta panosten käytön optimiin. Tuotehintojen aleneminen aiheut- taisi ongelmia erityisesti velkaantuneille usein tilaa voimak- kaasti kehittäneille tuottajille. Vaikka tuotot jakustannukset alenisivat tasasuhteisestikin, maatilan oma rahoitustulo pie- nenisi. Maatilojen sopeutuminen tuotehintojen alentumiseen ja sen kautta määräytyvä Suomen maatalouden laajuus riippui- si paljolti tuotantokustannusten ja maatalouden rakenteen muutoksista. Eri tuotantosuuntien sopeutumiskyky on hyvin erilainen. Rehun hinnan lasku alentaa kotieläintuotannon kustannuksia, kun taas kasvintuotannossa kustannussäästöt jäävät vähäisemmiksi. Tuotantoyksikköjen koon kasvatta- misella voidaan saavuttaa mittakaavaetuja alenevien yksik- kökustannusten muodossa. 14 Agric. Sei. Finl. 1 (1992)