We study work effort with its various determinants such as the educational level of the worker, the minimum or start-up salary as well as the initial endowment of the worker. By means of optimization we find that optimal work effort depends directly on the initial income available to the worker,...

We study work effort with its various determinants such as the educational level of the worker, the minimum or start-up salary as well as the initial endowment of the worker. By means of optimization we find that optimal work effort depends directly on the initial income available to the worker,...

Economic theory provides various explanations for vertical integration but transaction costs seem to be a major determinant of backward, forward and lateral integration. The paper studies integration trends in the newly emerging Bulgarian pharmaceutical sector, seeking transaction cost...