It is well known that if a monopolist serving a market of substitute products can perfectly price discriminate, the socially optimal set of products (or ‘characteristics’) will be supplied. This follows since the profits of the perfectly discriminating monopolist are equal to the consumers’ surplus. Thus the monopolist will provide the product selection that maximizes consumers’ surplus [see Wh...

Using an empirical framework based on the Mussa-Rosen model of monopoly quality choice, we calculate the degree of quality degradation in cable television markets and the impact of regulation on those choices. We find lower bounds of quality degradation ranging from 11 to 45 percent of offered service qualities. Furthermore, cable operators in markets with local regulatory oversight offer signi...

We model the market for news as a two-sided market where newspapers sell news to readers who value accuracy and sell space to advertisers who value advert-receptive readers. In this setting, monopolistic newspapers under-report or bias news that sufficiently reduces advertiser profits. Paradoxically, increasing the size of advertising eventually leads competing newspapers to reduce advertiser b...

A previous research demonstrates the profitability of partial refund policies in a monopoly setting, there is a certain lack of ubiquity in practice about these refunds in competitive service markets. This raises the question of how a partial refund policy may work and whether it is even sustainable in a competitive environment. This study investigates how competition may influence the profitab...

In this paper, we compare the conditions under which a government engages in corruption via bribing the media across two alternative settings: a media monopoly versus a media duopoly. A key distinction we make between the two settings is that unlike monopoly, in a duopoly a …rm’s individual capacity to expose the government may be lower than the collective capacity of both the …rms because the ...

the mass production of silk and its importance as goods exportable and strategic caused its monopoly by the shah-abbas i (996-1038 a.h.) and then the recruitment of the armenians merchants in his monopoly. therefore, the question is what function had the three related factors (silk, monopoly politics and armenians) in safavids economy and politics. for a careful investigation, after a review of...

introduction one of the limitations of tissue conditioners (tc) is gradual hardening of the material in a short time period after insertion in the mouth, due to the loss of their viscoelastic properties. the aim of this study was to determine the softness of two different tissue conditioners with and without the monopoly coating. methods and materials in this experimental study, acropars and vi...

We examine the intersection of patents and antitrust where a patent holder uses the monopoly power it possesses in the market for a patented product to exclude competitors in an adjacent market and attempt to monopolize or monopolize the adjacent market. The present scheme for awarding patents cannot judge when the issuance of a patent will lead to the appropriate balance between innovation and...