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Tag Archives: Demand externality

Pecuniary Externalities and Aggregate Demand Externalities

In Econometrica, Emmanuel Farhi and Iván Werning neatly summarize how their work on demand externalities fits in the literature. … pecuniary externalities, which were first shown to arise when a simple friction, market incompleteness, is introduced into the Arrow–Debreu framework (see, e.g., Hart (1975), Stiglitz (1982), Geanakoplos and Polemarchakis (1985), Geanakoplos, Magill, Quinzii, and Dreze (1990)). The logic is as follows. When asset markets are incomplete and there is more than...

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