The issue of Egyptian exports is at the forefront priorities because it one main sources obtaining foreign exchange, and a means to reduce deficit in balance payments. problem research that despite importance citrus as an important export crop, Egypt ranked third most exporting country world However, face strong competition global markets, objective estimate functions demand for clusters, using...

A Bayesian method of estimating multivariate sample selection models is introduced and applied to the estimation of a demand system for food in the UK to account for censoring arising from infrequency of purchase. We show how it is possible to impose identifying restrictions on the sample selection equations and that, unlike a maximum likelihood framework, the imposition of adding up at both la...