For many products, platforms enable sellers to transact with buyers. We show that the competitive conditions among sellers shape the market structure in platform industries. If product market competition is tough, sellers avoid competitors by joining different platforms. This allows platforms to...

In this work, we develop a macroeconomic agent-based model to study the role of demand and supply factors in the determination of inflation dynamics. The model is characterized by local interactions of heterogeneous firms and households in the labor and goods markets. Imperfect information...

In this chapter we present the main characteristics and problems involved in the study of the arms trade: product definition and data, strategic aspects of the arms trade and regulation. We illustrate these aspects using the latest theoretical and empirical literature on arms trade. The papers...