비닐하우스 토마토의 온실유형에 따른 장기평균비용을 고려한 적정 생산규모 분석 = An Analysis of Optimal Production Scales by Greenhouse Types using Long-run Average Cost in Controlled Tomato

다국어 초록 (Multilingual Abstract)

The optimal greenhouse scales for controlled tomato should be studied because the increase of oil price and labor costs following the shortage of workforce makes greenhouse cultivation hard to gain profits. The purpose of this study is to estimate optimal production scales by greenhouse types for controlled tomato. The translog cost function is estimated based on the production cost survey data. The results can be summarized as follows: First, the average production cost of controlled tomato per kg decreases as the production scale increases. Second, according to the tomatoes farm of standard farming income data of RDA, the minimum production scale is 23 ton. Third, the estimated output of single-span greenhouse considering production scale with minimum average cost is 345 ton and production cost per kg is 1,476 won. The corresponding figures of multi-span greenhouse are 415 ton and 936 won, respectively. The study results can be used as basic materials for efficient decision making of tomato farmhouses and novice farmers. Also, the study shows that multi-span greenhouse should be encouraged to be built, since it requires lower marginal cost than single greenhouse. The results of this paper will help increase the income of farmhouses and cut expenses for the coming years.

참고문헌 (Reference)

1 임청룡, "중국 東北三省의 쌀 생산비 분석" 한국국제농업개발학회 22 (22): 103-109, 2010

2 이종원, "자갈축열층의 공기유동 및 축열성능" 한국농공학회 56 (56): 75-81, 2014

3 안병일, "쌀농업의 규모확대 : 시장개방에 유효한 정책인가?" 한국농업경제학회 43 (43): 57-75, 2002

4 유항근, "규모의 경제 분석에 사용되는 두 가지 접근법의 비교분석" 한국응용경제학회 8 (8): 71-92, 2006

5 Diop, Souleymane, "Measurement and Comparison of Overall Heat Transfer Coefficients for Greenhouse Covering Materials with Thermal Screens" 한국농공학회 56 (56): 41-51, 2014

6 Gujarati, D. N., "Gujarati Econometrics" Jipil Publishing 2009

7 Kim Y. S., "Estimates of cost and revenue of Dutch type glasshouse horticulture in Korea" 34 : 69-84, 1993

8 Lee J. W., "Energy-saving greenhouse systems in foreign countries" 55 (55): 37-43, 2013

9 Lansick, A. O., "Energy productivity growth in the Dutch greenhouse industry" 88 (88): 124-132, 2006

10 Đjević, M, "Energy consumption for different greenhouse constructions" 53 (53): 71-77, 2008

11 Kim, S. G., "Effects of scale expansion by automatization in pork production" 11 (11): 125-138, 1995

12 Christensen, L. R., "Economies of scale in U.S. electric power generation" 84 (84): 655-676, 1976

13 Choi C. K., "Economic analysis of geothermal heating pump system for the horticultural greenhouse" 10 (10): 99-109, 2011

14 Lee D. S., "Cut-flower farmers’performance capacity of government loans" 22 (22): 1-17, 1999

15 Oh S. I., "An economic analysis of glasshouse agriculture" 18 (18): 55-69, 1995

16 Kim Y. J., "A study on economic analysis of new renewable energy and effects of ground source heat pump(GSHP)in paprika farms. The Korean Society of the Agricultural machinery 2013 Autumn Proceedings 18(2) : 193-194(in Korean)" 18 (18): 193-194, 2013

17 Kim, H. H., "A study of the optimum size in Korean dairy farming" 6 : 389-403, 1987

18 White, H., "A heteroskedasticity consistent covariance matrix estimator and a direct test for heteroskedasticity" 48 (48): 817-838, 1980