手法を比較

	Agricultural Household Model	Enterprise Budgeting
分野	Food Agriculture Studies	Food Agriculture Studies
系統	Regression model	Process / pipeline
提唱年	1986	1984
提唱者	Inderjit Singh, Lyn Squire & John Strauss	Farm management tradition (Kay, Edwards & Duffy; Boehlje & Eidman)
種類	Structural production-consumption household model with separability testing	Full-cost enterprise budgeting pipeline with per-unit cost of production
原典	Singh, I., Squire, L., & Strauss, J. (Eds.). (1986). Agricultural Household Models: Extensions, Applications, and Policy. Baltimore: Johns Hopkins University Press for the World Bank. ISBN: 9780801932489	Kay, R. D., Edwards, W. M., & Duffy, P. A. (2020). Farm Management (9th ed.). New York: McGraw-Hill Education. ISBN: 9781259837463
別名	Farm Household Model, Singh-Squire-Strauss Model, Non-Separable Household Model, Agricultural Household Production-Consumption Model	Enterprise Budget, Crop and Livestock Budget, Cost of Production Budget, Full-Cost Enterprise Analysis
関連	3	3
概要	The agricultural household model treats the farm household as a single unit that is simultaneously a producer and a consumer, choosing how much to grow, how much labour to hire or supply, and how much to consume — decisions that ordinary firm theory and consumer theory treat as separate. Synthesised in Singh, Squire, and Strauss's 1986 World Bank volume, the model's central result is conditional: when all markets (especially for labour) function perfectly, the household's problem is recursive — it maximises farm profit first and then spends that profit like any consumer, so production decisions are independent of preferences. But when markets fail, the two sides fuse: a shadow wage replaces the market wage and household composition begins to drive production. Whether that separation holds is an empirical question, and Benjamin's 1992 Econometrica test is the canonical way to answer it.	An enterprise budget is a complete, per-unit projection of the revenues and costs of a single farm enterprise — a crop per hectare, a class of livestock per head — that, unlike a gross margin, accounts for both variable and fixed costs to arrive at net return and the full cost of production. Standard in farm management texts such as Kay, Edwards, and Duffy and Boehlje and Eidman, enterprise budgeting forces every claim on the enterprise's resources to be priced: not just seed and fertiliser, but depreciation, interest, land charge, and overhead. The headline outputs are net return per unit and the unit cost of production, the break-even price and yield that tell a manager what it really takes for the enterprise to pay its way.