This paper deals with the estimation of a random coefficient model. The virtue of this approach is that it considers firm heterogeneity, which conventional SFA models do not. Applying the model to Polish farms, the results indicate that the conventional random and fixed effect models...

We construct a model to identify determinants of the diffusion rate of standards in a food chain. We argue that adoption decisions in the food chain are determined by farmers and processors economic considerations. Factors such as pricing behavior, compliance costs and market structure, all of...