Walmart is one of the most successful companies in the world. With more than $ 524 billion in 2020 revenue and 2.2 million employees, Walmart is the world's largest company by sales volume and is ranked 19th on the Forbes list of the world's largest public companies. Walmart serves nearly 265...

After describing the essential features of the book market, a welfare analysis of the fixed book price agreement is given. Allowance is made for the opportunity cost of reading. Theoretically, the agreement pushes up book prices and depresses book sales. However, more titles will be published,...

After describing the essential features of the book market, a welfare analysis of the fixed book price agreement is given. Allowance is made for the opportunity cost of reading. Theoretically, the agreement pushes up book prices and depresses book sales. However, more titles will be published,...

Merged firms are typically rather complex organisations. Accordingly, merger has a more profound effect on the structure of a market than simply reducing the number of competitors. We show that this may render horizontal mergers profitable and welfare-improving even if costs are linear. The...

In the homogenous good case, the relationship between market structure and efficiency was studied extensively. Assuming a standard quadratic utility with quantity competition, this paper carries on the analysis in a differentiated good context. It can be shown that there is a positive...

Merchant guilds have been portrayed as social networks that generated beneficial social capital by sustaining shared norms, effectively transmitting information, and successfully undertaking collective action. This social capital, it is claimed, benefited society as a whole by enabling rulers to...

Empirical evidence suggests that many mergers do not increase profits of the participating firms and decrease welfare. Due to the globalization of markets we should take an international view on mergers and their welfare effects. This paper develops a Bertrand-model of an international...

In the homogenous good case the impact of a marginal cost variation on consumer surplus, industry profits and social surplus was studied in extensive manner. Assuming quantity competition and a standard quadratic utility this paper carries on this analysis in a differentiated good context. In...