Estimation of price elasticities from cross-sectional data (original) (raw)

State-Level Output Supply and Input Demand Elasticities for Agricultural Commodities

1992

Own- and cross-price production elasticities, estimated in four major agricultural states (California, Iowa, Texas, and Florida), measure the sensitivity to price changes of as many as 25 individual crop and livestock output supplies and six input demands. While most responses were highly inelastic, a wide range of elasticities occurred across States. The range was generally greater for crop supplies than for livestock supplies or input demands. The wide range of elasticities demonstrates the need for economic analysis to focus on specific groups of producers when assessing distributional consequences of policy changes.

Price and Quantity Measurements: Theoretical Biases in Empirical Procedures

Working Papers, Department of Economics, 1989

The presence of qualitative changes in the nature of many commodities hinders our ability to construct meaningful price and quantity indices. This paper assesses some of the quality-change literature that seeks to resolve this problem. Several writers have endeavoured to develop objective, theory-neutral procedures designed to measure qualitative changes in some timeless, quantitative units. These measures, they argued, could be used to properly adjust ordinary price and quantity statistics for distortions introduced by quality changes. A careful examination suggests, however, that such procedures are neither objective nor free of theoretical biases. First, all existing attempts to develop ‘objective’ commodity measures in the presence of quality changes are besieged by a constant resort – explicit or implicit – to ‘subjective’ considerations. Second, both the idea that quality can be measured and the methods developed for that purpose are closely tied with the neoclassical theoretical paradigm, particularly with its emphasis on perfect competition and equilibrium.

Estimation of Supply and Demand Elasticities for Major Crops Produced in Pakistan

THE LAHORE JOURNAL OF ECONOMICS

Thisarticlestudiesthe supply and demand of major Pakistani crops. We estimatesupply elasticities usinga Nerlovian partialadjustment processanddemand elasticities usingthe Deaton and MuellbauerAlmost Ideal Demand Systems (AIDS). We usesecondary data from various Household IntegratedEconomicSurveysand Agricultural Statistics of Pakistan. Our estimated supplyelasticities with respect to price liebetween 0.1 and 0.5 for all crops. Pulses tend to have higher elasticities than traditional crops such as wheat and rice. Demand elasticities with respect to price tend to beinelastic, with the exception of poultry andfruit which appearto be luxury items. Pulses are income inelastic, implying that consumption may not rise significantly asper capita incomesand thatthe introduction of yield enhancing varietieswill lead to lower prices.

Estimating Price Variability in Agriculture: Implications for Decision Makers

Journal of Agricultural and Applied Economics, 1998

Using a stochastic version of the POLYSYS modeling framework, an examination of projected variability in agricultural prices, supply, demand, stocks, and incomes is conducted for corn, wheat, soybeans, and cotton during the 1998–2006 period. Increased planting flexibility introduced in the 1996 farm bill results in projections of significantly higher planted acreage variability compared to recent historical levels. Variability of ending stocks and stock-to-use ratios is projected to be higher for corn and soybeans and lower for wheat and cotton compared to the 1986–96 period. Significantly higher variability is projected for corn prices, with wheat and soybean prices also being more variable. No significant change in cotton price variability is projected.