In an imperfectly competitive economy, a continuum of equilibria at the firm level exists under certain analytical conditions (Ng 1986). Extending the earlier analysis of a representative firm, this paper shows that even if the condition for a continuum of equilibria is not exactly satisfied, the factors of price-adjustment costs, interfirm heterogeneity, and macro-externality can cause the economy to be stuck at the quasi macroequilibria after aggregate demand experiences a contractionary shock. Although adjustment costs are small and gains from adjustment are potentially large, the adjustment tends to be sluggish due to the existence of interfirm macro-externality.
|Number of pages||17|
|Journal||Annals of Economics and Finance|
|Publication status||Published - 1 May 2004|
- Adjustment cost
- Aggregate demand
- Imperfect competition