Digital platforms and data-driven business models have become integral to today's internet economy. Large technology companies like Apple, Google, Amazon and Microsoft exert control over access to online content, products, services and social interactions through their digital ecosystems and...

Digitale Plattformen und datengesteuerte Geschäftsmodelle sind zu einem festen Bestandteil der heutigen Internetwirtschaft geworden. Große Technologieunternehmen wie Apple, Google, Amazon und Microsoft üben durch ihre digitalen Ökosysteme und die damit verbundene GatekeepingMacht die...

chorus of the tragedy which plays on the world stage. The main thesis of our work is that,despite the triumphant rhetoric praising the merits of perfect competition, the global fields ofthe dysfunctional market system have mushroomed in what we call Warrant Economics forthe Free-Market...

We apply a monopoly trade union model and analyze employment, wage and budgetary effects of (i) an inflow of migrant workers and (ii) an increase in the labor market participation rate of migrants. Per assumption, natives and migrants solely differ with respect to the level of benefit claims in...

A digressive tax such as a variable rate sales tax or a tax on price gives firms an incentive for expanding output. Thus, unlike unit and ad valorem taxes which amplify the harm from monopoly, a digressive tax lessens the harm. We analyse a tax on price with respect to efficiency and practical...

To avoid high profit levels often experienced in countries where monopolies in public utility sectors are regulated through price-cap mechanisms, several regulatory agencies have recently introduced profit-sharing (PS) clauses aimed at obtaining price reductions to the benefit of consumers....

The seller of N distinct objects is uncertain about the buyer's valuation for those objects. The seller's problem, to maximize expected revenue, consists of maximizing a linear functional over a convex set of mechanisms. A solution to the seller's problem can always be found in an extreme point...

This paper focuses on the legal monopoly for sporting bets in Germany. We analyze the pricing behavior of the monopolist ODDSET and find that typical pricing inefficiencies on betting markets are reinforced under the monopoly. This result in conjunction with the decreasing tax revenue may...