The paper develops a differential mixed system which accommodates in a theoretically consistent way both price-predetermined, quantity-dependent and quantity-predetermined, price-dependent input demand functions. In addition, it introduces generalized marginal cost shares obtaining, thus, a...

The objective of the present study is to investigate empirically the existence of convergence clubs in state-level agricultural productivity of the USA. This is pursued using Total Factor Productivity (TFP) data from 48 contiguous states over the period 1960-99 and time series methods which...