We offer a new, succinct proof that the money metric utility is concave for any preference relation representable by a concave function if and only if the indirect utility is affine in wealth. The proof exploits the existence of a least concave representation established in Debreu (1976), a...

We analyze the redistributional (dis)advantages of a minimum wage over income taxation in competitive labor markets, without imposing assumptions on the (in)efficiency of labor rationing. Compared to a distributionally equivalent tax change, a minimum-wage increase raises involuntary...

Federal securities regulation in the United States purports to take a distinctly non-paternalistic approach to the securities markets. The securities laws utilize disclosure, rather than heavy-handed substantive rules, to regulate securities transactions. Instead of flatly and paternalistically...

This paper studies the possibility of secure implementation (Saijo, T., T. Sjöström, and T. Yamato (2007) "Secure Implementation," Theoretical Economics 2, pp. 203-229) in divisible and non-excludable public good economies with quasi-linear utility functions. Although Saijo, Sjöström, and...

We study a model to explore the (dis)connect between market efficiency and real efficiency when real decision makers learn information from the market to guide their actions. We emphasize two channels that determine whether the two efficiency concepts are aligned. The "externality channel" says...

When calculating the Weighted Average Cost of Capital (WACC), the well-known textbook formula includes tax shields with the (1-T) factor affecting the contribution of debt to WACC. In this work we develop a procedure for properly calculating tax shields including the case when Losses Carried...

Many public transport services are heavily subsidized. One of the main justifications of this is the expected beneficial effect on road congestion. Stockholm introduced congestion pricing in 2006 and the effects on car and public transport demand were carefully monitored. This change in prices...

We investigate how carbon taxes combined with output-based rebating (OBR) in an open economy perform in interaction with the carbon policies of a large neighboring trading partner. Analytical results suggest that whether the purpose of the OBR policy is to compensate firms for carbon tax burdens...

We study the percentage of welfare losses (PWL) yielded by imperfect competition under product differentiation. When demand is linear, if prices, outputs, costs and the number of firms can be observed, PWL is arbitrary in both Cournot and Bertrand equilibria. If in addition, the elasticity of...