We provide a framework of analysis for models of imperfect competition when firms compete in quality as well as in another instrument (either price or quantity). The equilibrium can notably be characterized through a quality parameter, which depends on firms' diversion ratios. Extending the...

This paper provides a comprehensive analysis of welfare effects under multiple policy interventions and non-governmental external changes. Specifically, in relation to multi-dimensional pass-through, we provide “sufficient statistics” formulas for welfare measures under a fairly general...

Two-sided platform firms serve distinct customer groups that are connected through interdependent demand, and include major businesses such as the media industry, banking, and the software industry. A well known result of tax incidence is that consumers of a more heavily taxed good pay a higher...

The relative efficiency of ad valorem and unit taxes is analyzed for oligopolistic markets. We provide a simple proof that ad valorem taxes welfare-dominate unit taxes in the short run if production costs are identical across firms. The proof covers a wide range of market conduct and...

A benevolent social planner, which faces a cost of public funds because of distortive taxation, wants to finance an upstream monopoly. This monopoly produces a necessary input for a downstream competitive sector which competes a la Cournot (with either a fixed number of firms or free entry in...

The relative efficiency of ad valorem and unit taxes is analyzed for oligopolistic markets. We provide a simple proof that ad valorem taxes welfare-dominate unit taxes in the short run if production costs are identical across firms. The proof covers a wide range of market conduct and...

We study the pass-through of indirect taxes on beer prices in the European Union (EU). Exploiting the variation of value added tax rates, beer excise tax rates, and beer prices in a panel of monthly data from 1996 to 2016 of all current 28 EU member states, we estimate the tax pass-through of...

We study the pass-through of indirect taxes on beer prices in the European Union (EU). Exploiting the variation of value added tax rates, beer excise tax rates, and beer prices in a panel of monthly data from 1996 to 2016 of all current 28 EU member states, we estimate the tax pass-through of...

This paper analyzes the behavior of the Argentine hamburger market during the period 2013-2018, to see if an important merger that occurred by the end of 2015 (the BRF/MRP merger) had any discernable market-power or efficiency effects. To do this, we run an econometric demand-and-supply model,...

It is a widespread belief that multinationals are exploiting their market power in national coffee markets by keeping consumer prices too high and thereby limiting demand for coffee beans. The purpose of this study is to test if this is case in the Swedish market for roasted coffee. In the...