Asymmetric Competition in the Setting of Diesel Excise Taxes in EU Countries

This paper tests new implications of the asymmetric tax competition model on diesel excise taxes in the European Union (EU). I extend the standard tax competition model by replacing the unit demand assumption with iso-elastic demand. As a result, not only the level of the equilibrium tax but also the slope of the tax reaction function depends positively on the size of the country. The new implication is testable on panel data in first differences, and it is tested on a panel of 16 European countries. The results provide strong evidence for strategic interaction in the setting of diesel excises and confirm the effect of country size on the response to tax changes in neighboring countries. Strategic interaction between EU countries intensified in the mid 1990s and drove small European countries to set lower diesel tax rates. These results explain why the EU's minimum tax policy has failed to harmonize diesel tax rates across member states.tax competition, minimum tax, asymmetric regions, diesel excise, European Union

Application of Market Models to Network Equilibrium Problems

We present a general two-side market model with divisible commodities and price functions of participants. A general existence result on unbounded sets is obtained from its variational inequality re-formulation. We describe an extension of the network flow equilibrium problem with elastic demands and a new equilibrium type model for resource allocation problems in wireless communication networks, which appear to be particular cases of the general market model. This enables us to obtain new existence results for these models as some adjustments of that for the market model. Under certain additional conditions the general market model can be reduced to a decomposable optimization problem where the goal function is the sum of two functions and one of them is convex separable, whereas the feasible set is the corresponding Cartesian product. We discuss some versions of the partial linearization method, which can be applied to these network equilibrium problems.Comment: 18 pages, 3 table

Measuring Competition in the U.S. Airline Industry Using the Rosse-Panzar Test and Cross-Sectional Regression Analyses

We employ the Rosse-Panzar test to assess market performance in selected airport-pairs originating from Atlanta. The Rosse-Panzar test stands in the tradition of the New Empirical Industrial Organization. It is based on the comparative statics of a reduced form revenue equation. Therefore, it is less powerful than structural models, but it offers the advantage of less stringent data requirements and reduces the risk of model misspecifications. The test statistic allows us in most airport-pairs to reject both conducts consistent with the Bertrand outcome, which is equivalent to perfect competition, and the collusive outcome, which is equivalent to joint profit-maximization. Rather, the test statistic suggests that behavior is consistent with a range of intermediate outcomes between the two extremes, including, but not limited to the Cournot oligopoly. In the second part of the paper, a cross-section pricing regression complements the Rosse-Panzar test. It shows that the presence of low-cost competition in an airport-pair reduces the average fare significantly.airlines; oligopoly; conduct; price-cost marginas; Lerner index; Rosse-Panzar test