Mixed Competition and Patent Licensing

This paper studies the patent licensing decision of an insider patentee when two firms engage in a mixed (Cournot–Bertrand or Bertrand–Cournot) competition where one firm adopts the quantity strategy while the other uses the price strategy and vice versa. If either the fixed fee or royalty is applied, then the licensor prefers the fixed fee when the licensor takes the quantity strategy, while the licensee uses the price strategy (Cournot–Bertrand). If the two‐part tariff is applied, then the two‐part tariff is more likely to be adopted by the licensor under Cournot–Bertrand than under Bertrand–Cournot competition.     

INTER-MARKET COMPETITION THROUGH BUNDLING IN THE PRESENCE OF COST ADVANTAGE

This paper presents a model of inter-market competition through bundling wherein each firm has a cost advantage in a different market and competes against fringe firms. Without cost saving through bundling, there is no equilibrium in which the bundled good is provided. However, with cost saving through bundling, there exist equilibria in which one firm provides bundling and the other does not. In this case, bundling can be used as a device for entry deterrence. Finally, we illustrate that bundling can reduce social welfare by discouraging the efficient entrant from entering the market.     

The role of financial sector competition for monetary policy

Abstract In this paper, we examine the impact of competition in the banking industry on financial market activity. In particular, we explore this issue in a setting where banks simultaneously insure individuals against liquidity risk and offer loans to promote intertemporal consumption smoothing. In addition, spatial separation and private information generate a transactions role for money. Interestingly, we demonstrate that the industrial organization of the financial system bears significant implications for the effects of monetary policy. Under perfect competition, higher rates of money growth lead to lower interest rates and a higher volume of lending activity. In contrast, in a monopoly banking sector, money growth restricts the availability of funds and raises the cost of borrowing.     

Monopolistic competition and income dispersion

We develop a model of monopolistic competition that accounts for consumers’ heterogeneity in both incomes and preferences. This model makes it possible to study the implications of income redistribution on the toughness of competition. We show how the market outcome depends on the joint distribution of consumers’ tastes and incomes and obtain a closed-form solution for a symmetric equilibrium. Competition toughness is measured by the weighted average elasticity of substitution. Income redistribution generically affects the market outcome, even when incomes are redistributed across consumers with different tastes in a way such that the overall income distribution remains the same.     

Price discrimination of buyers with identical preferences and collusion in a model of advertising

A model of advertising and price distributions is investigated whereby each seller can contact different buyers, whose preferences are identical, with different probabilities. The model features a continuum of equilibria parametrized by the ratio of the buyers contacted by one seller—differing across “market segments”—and by the other sellers. In general, the sellers practice price discrimination across segments. More asymmetric equilibria correspond to higher volumes of transactions and higher expected transaction prices. This results in a lower expected utility for the buyers and higher expected profits; thus, identifying areas of influence can help the sellers to support collusion.     

Product customization

The advent of the Internet has revolutionized the way companies advertise, develop and distribute products. Firms can now customize their advertising messages and products to the particular characteristics and needs of customers. Customers themselves can create their own products. We investigate investments by firms in product-customization capabilities within a duopoly model of horizontal product differentiation. We find that (i) if brand name effects are not too strong, one firm emerges as a leader in product customization—firms make asymmetric investments in product-customization technologies in order to reduce price competition, (ii) if brand name effects are strong, both firms make extensive investments in product customization, and (iii) the possibility of product customization can raise industry profits if brand names are weak, but not when they are strong.     

Innovation,licensing, and price vs. quantity competition

In this paper, we develop a differentiated duopoly model with endogenous cost-reducing R&D and review the argument on welfare effect of price and quantity competition in the presence of technology licensing. We show that, with licensing, the standard conclusion on duopoly (Singh and Vives, 1984) is completely reversed. Cournot competition induces lower R&D investment than Bertrand competition does. Moreover, Cournot competition leads to lower prices, lower industry profit, higher consumer surplus and higher social welfare than Bertrand competition.     

Double marginalization and cost pass-through: Weyl–Fabinger and Cowan meet Spengler and Bresnahan–Reiss

Consider the classical double marginalization problem of single-product successive monopolies. We show that the ratio of the cost pass-through at the final sale relative to that at the wholesale level is characterized by the curvature of inverse demand in the final market. We also apply Cowan’s (2012) method, which utilizes the idea of pass-through in an analysis of third-degree price discrimination, to compare consumer surplus under vertical integration and separation.     

Price Competition and Product Differentiation when Goods have Network Effects

Abstract. The objective of our approach is to develop a model that captures horizontal product differentiation under environmental awareness with price competition whereby environmentally friendly products are costlier to produce. As an example, we refer to automobile producers offering cars with a gasoline-powered engine and one with a natural gas-powered engine. The network of petrol stations provides the complementary good. We use a two-stage game in prices and characteristics to analyse the market structure. In order to find out whether a private decision on the type of engine coincides with a socially optimal product differentiation, we determine the position of the two types of engine by a welfare-maximizing authority.     

Over- and Underbidding in Central Bank Open Market Operations Conducted as Fixed Rate Tender

Abstract. Open market operations play a key role in allocating central bank funds to the banking system and thereby in steering short‐term interest rates in line with the stance of monetary policy. Many central banks apply so‐called ‘fixed rate tender’ auctions in their open market operations. This paper presents, on the basis of a survey of central bank experience, a model of bidding in such tenders. In their conduct of fixed rate tenders, many central banks faced specifically an ‘under‐’ and an ‘overbidding’ problem. These phenomena are revisited in the light of the proposed model, and the more general question of the optimal tender procedure and allotment policy of central banks is addressed.     

EQUILIBRIUM SELECTION IN THE YANO MODEL OF PRICE LEADERSHIP

Abstract. A number of studies have provided a theoretical explanation for the fact that the technologically superior firm becomes a price leader in a duopoly market for a homogeneous product. While previous studies show that the state in which the technologically superior firm becomes a price leader is a Nash equilibrium (superior leader equilibrium), they do not eliminate the possibility that the state in which the technologically inferior firm becomes a price leader is also a Nash equilibrium (inferior leader equilibrium). We demonstrate that an inferior leader equilibrium can be eliminated by the iterative elimination of weakly dominated strategies.     

The impact of infrastructure and service-based competition on the deployment of next generation access networks: Recent evidence from the European member states

This work identifies the most important determinants of next generation access (NGA) network deployment, using data from the EU27 member states for the years 2005–2011. Our results indicate that the more service-based competition is pronounced the more negative is the impact on NGA deployment, while competitive pressure from broadband cable and mobile affects NGA deployment in an inverted U-shaped manner. We further find that there are severe adjustment costs and stickiness towards the desired long-term level of NGA infrastructure. It appears that the approach of the European Commission to force service-based competition via cost-based access regulation will not elicit the huge new investment needed for a comprehensive NGA roll-out.     

A note on undominated Bertrand equilibria

This note shows that the conventional outcome associated with Bertrand competition with homogenous products and different marginal costs is obtained in every Nash equilibrium in which firms use undominated strategies. This strengthens an existence result due to Blume (2003).     

On input market surplus and its relation to the downstream market game

Abstract In order to analyze the welfare effects of price changes in input markets – following for example a price‐fixing conspiracy – economists have studied the relationship between the surplus measured in the input markets and the surplus in the output markets. The latest results hinge on simplifying assumptions, which are relaxed here by linking the input markets surplus question to another stream of literature, which characterizes functions that oligopolists collectively, yet unintentionally, maximize. It is shown that the area under the input demands is equal to the change in a function for which critical points coincide with the equilibria of the downstream game. A particular case of these functions is the exact potential function.     

Loss-leader pricing and upgrades

A new theory of loss-leader pricing is provided in which firms advertise low (below cost) prices for certain goods to signal that their other unadvertised (substitute) goods are not priced too high. The theory is applied to the pricing of upgrades. The results contrast with most existing loss-leader theories in that firms make a loss on some consumers (who buy the basic version of the good) and a profit on others (who buy the upgrade).     

Spatial Cournot Competition in a Linear City with Directional Delivery Constraints

This study investigates a sequential game of location and transportation mode choices, as well as the subsequent quantity choice. The results show that spatial Cournot competition with directional delivery constraints yields a richer set of spatial configurations, involving midpoint agglomeration, maximum differentiation and asymmetric dispersion, and a richer set of transportation mode selections, involving delivery in different directions, asymmetric delivery between duopoly firms, and delivery in two directions by each firm, depending on the fixed cost of a transportation instrument. This paper concludes with an investigation of welfare analysis on optimal locations and transportation modes.     

Product Market Reform and Innovation in the EU*

European Union countries have implemented widespread reforms to product markets to stimulate competition, innovation, and economic growth. We provide empirical evidence that the reforms carried out under the EU Single Market Programme (SMP) were associated with increased product market competition, as measured by a reduction in average profitability, and with a subsequent increase in innovation intensity and productivity growth for manufacturing sectors. Our analysis exploits exogenous variation in the expected impact of the SMP across countries and industries to identify the effects of reforms on average profitability, and the effects of profitability on innovation and productivity growth.     

Product differentiation and welfare: Comment

In general it may be argued that the monopolistically competitive industry is not consistent as viewed from the game-theoretic point of view, and it ignores the strategic aspects of competition. This comment points out specifically how the welfare implications derived from a Nash equilibrium model in which the goods are imperfectly substitutes used by Spence in many articles are incorrect. The total quantities offered by firms at Nash equilibria within this model and those of the market demand curve at the same price levels are not equal. All emanate from the misspecification of the price equation with substitutable goods by Spence which is not appropriate for the Nash equilibria model with many firms. Moreover, some other very important papers of Spence which follow are critisized for the same mathematical contradiction.     

In pursuit of impeccable veracity

I study the institution of avoiding hiring one’s own Ph.D. graduates for assistant professorships. I argue that this institution is necessary to create better incentives for researchers to incorporate new information in studies, facilitating the convergence to asymptotic learning of the studied fundamentals.     

Competition for exclusive customers: comparing equilibrium and welfare under one-part and two-part pricing

Abstract.  This paper compares one-part and two-part pricing in a discrete-continuous choice model, providing more extensive welfare results than prior literature. Under two-part pricing, firms may set fixed fees with or without 'unit-price commitment,' where the lack of unit-price commitment is consistent with 'after-market monopolization.' We find that two-part pricing with unit-price commitment is firms' dominant unilateral and joint pricing policy. Two-part pricing without unit-price commitment is the least desirable policy from a welfare standpoint. Under appropriate conditions, one-part pricing produces the highest consumer and social welfare, but the lowest profits.