This paper examines if international trade can reduce total welfare in an international oligopoly with differentiated goods. We show that welfare is a U-shaped function in the transport cost as long as trade occurs in equilibrium. With a Cournot duopoly trade can reduce welfare compared to...

This paper examines the relation between prices in conventional stores and on the Internet. Main results from the theoretical analysis are i) we expect a discrete fall in prices in conventional stores as the share of the population with access to Internet reaches a critical level, ii) the...

Does the common currency promote goods market integration within the EMU? We argue that such an effect is likely, but that the mechanism typically proposed lover costs of arbitrage because of increased price transparency is likely to be of minor importance. Instead we sketch a duopoly model...

This paper examines retail grocery price levels with a very large (unbalanced) panel of stores that operate in well-defined local markets. We explain price variation across grocery retailers by the concentration of wholesalers and retailers, and the market share of hypermarkets (and control for...

This paper reports the results from a survey on price-setting behavior of a large random sample of Swedish firms. Prices are found to adjust only infrequently; the median firm adjusts the price once a year. State-dependent pricing is found to be more common than is usually assumed and at least...

Average profits of a price taker are increasing in the variability of the output price (Oi, 1961). We show that, for the same reason, average profits of the price taker are increasing in the variability of the price of inputs. We proceed to establish that the same holds for a firm with a...