This article investigates the behavior of agricultural input prices, agricultural output prices, and retail food prices using the cointegration|error-correction methodology. The findings support “cost push” and “demand pull” theories, because disequilibrium at the input level is...

The authors examine the supply response of the Greek broiler market. A generalized autoregressive conditional heteroskedasticity (GARCH) process is used to estimate expected price and price volatility; price and supply equations are estimated jointly. In addition to the standard GARCH model,...