The welfare implications of vertical mergers have been a subject of disagreement for decades. Similar to horizontal mergers, economists need to weigh the efficiency gains relative to the market power concerns when considering the competitive effects of vertical mergers. However, in vertical...

A tractable model with infinitely lived agents is constructed for the examination of bubbles and unemployment. It is demonstrated that the presence of bubbles stimulates capital accumulation and reduces unemployment. The presence of bubbles also changes the effects of government policies that...

We investigate how globalization is reflected in asset prices. We use shipping costs to measure firms' exposure to globalization. Firms in low shipping cost industries carry a 7 percent risk premium, suggesting that their cash-flows covary negatively with investors' marginal utility. We find...

This paper provides an empirical description of the relationshipbetween the trading system operated by a stockexchange and the transaction costs faced by heterogeneous investors who use the exchange. Therecent introduction ofSETS in the London Stock Exchange provides an excellent opportunity...