New theories of international trade suggest that pro- tectionism can make sense. This finding depends on the in- troduction of market power and increasing returns to scale into the international trade theory. The enormous political implications of this hypothesis have started a large interest in applied or empirical investigations of this issue. However, econometric work in international trade is comparatively scarce, especially if it comes to testing with individual data. Therefore, this volume is considered to be a contribution to fill that gap. The volume consists of three parts: First,...