This paper develops and tests implications of an oligopoly-pricing model. The model predicts that during a demand expansion, the short run competitive price is a pure strategy Nash equilibrium but in a recession, firms set prices above the competitive price. Thus, price markups over the...

Existing micro evidence of firms' price changes tends to show a downward sloping hazard rate – the longer the price of a product has remained the same, the less likely it is that the price will change. Using a panel of Norwegian plant- and product-specific prices, we also find a downward...