This paper explores Rosenstein-Rodan's idea that simultaneous industrialization of many sectors of the economy can be profitable for them all even when no sector can break even industrializing alone. We analyze this idea in the context of an imperfectly competitive economy with aggregate demand...

We present a model of the creation of social networks, such as political parties, trade unions, religious coalitions, or political action committees, through discussion and mutual persuasion among their members. The key idea is that people are influenced by those inside their network, but not by...

When world trade is not free and costless, a less developed country can profitably industrialize only if its domestic markets are large enough. In such a country, for increasing returns technologies to break even, sales must be high enough to cover the set-up costs, This paper studies some...