Chinese Abstract:...

Chinese Abstract:...

D. Patinkin and R.W. Clower belong to the first criticists of the model IS-LM, and they have revealed its theoretical weaknesses. It was in the half of the sixties of the 20 century, i. e. at the time when there was nobody to make the effectiveness of the Keynes's policies dubious. These...

The aim of this study is to investigate how network effects affect the quality and price decisions of firms in a vertically differentiated market. As network effects increase, high-quality producers tend to raise quality while low-quality producers lower it. The degree of product differentiation...