Entry Deterrence and Entry Accommodation Strategies of a Multiproduct Firm Regulated with Dynamic Price Cap

In this paper we study the way a multiproduct firm, regulated through a dynamic price cap, can develop a price strategy that uses the regulatory policy to deter entry. We consider a firm that initially operates as a monopolist in two markets but faces potential entry in one of the markets. We conclude that the regulated firm can have the incentive to block the entry. This strategy leads to the reduction of the price in both markets. However, the final effect of the entry deterrence strategy on total consumer surplus is not always positive.     

How the source of the entrant's advantage limits entry‐deterring tying

I revisit a simple model of entry‐deterring tying—example 1 from Whinston's (1990) seminal paper—but allow the potential entrant to have either a cost advantage or a willingness‐to‐pay (WTP) advantage relative to the incumbent. I show that, compared to the usual case in which the potential entrant is cost‐advantaged, tying is less effective against an entrant with a WTP advantage because an entrant with a large WTP advantage may be able to induce the buyer to buy both the tied bundle and the entrant's product. I also show that tying but failing to deter entry can be less costly when facing an entrant with a WTP advantage than when facing an entrant with a cost advantage. For a firm facing uncertainty about, for example, the entrant's entry costs, this makes tying a more attractive entry deterrence strategy against a WTP‐advantaged entrant. These results shed light on the important policy question of which markets are most likely to be susceptible to entry‐deterring tying.     

The Entry‐Deterring Effects of Inflexible Regulation

This paper investigates the signalling role of tax policy in promoting, or hindering, the ability of a monopolist to practise entry deterrence. We show that environmental policy can facilitate the incumbent firm's concealment of information from potential entrants, thus deterring entry, and yet entail welfare improvements. Furthermore, we demonstrate that entry deterrence is more likely to arise when environmental regulation cannot be rapidly revised across time if market conditions change (inflexible regimes) than when regulatory agencies can adjust environmental policy over time.     

UPSTREAM MARKET FORECLOSURE

This paper investigates how an incumbent monopolist can weaken potential rivals or deter entry in the output market by manipulating the access of these rivals in the input market. We analyse two polar cases. In the first one, the input market is assumed to be competitive with the input being supplied inelastically. We show that this situation opens the door to entry deterrence. Then, we assume that the input is supplied by a single seller who chooses the input price. In this case, we show that entry deterrence can be reached only through merger with the seller of the input.     

Competition Between Exclusive Religions: The Counter‐Reformation As Entry Deterrence

This article sets forth a theory of competition between exclusive religions as an entry deterrence game, in which the incumbent may find it profitable not to accommodate but to deter the competitor's entry by precommitting to sufficient capacity expansion in the event of entry. If entry costs are high enough, deterrence is optimal and the incumbent remains a monopolist, although the entry threat distorts its effort upward. The model is then applied to the Catholic Church's reaction to the Protestant Reformation. It is argued that the model provides a better fit to the historical data of the Counter‐Reformation than the price‐cutting model proposed by economists Ekelund, Hébert and Tollison ( 2004 , 2006 ).     

Self-confidence and strategic behavior

We suggest that overconfidence (conscious or unconscious) is motivated in part by strategic considerations, and test this experimentally. We find compelling supporting evidence in the behavior of participants who send and respond to others’ statements of confidence about how well they have scored on an IQ test. In two-player tournaments where the higher score wins, a player is very likely to choose to compete when he knows that his own stated confidence is higher than the other player’s, but rarely when the reverse is true. Consistent with this behavior, stated confidence is inflated by males when deterrence is strategically optimal and is instead deflated (by males and females) when luring (encouraging entry) is strategically optimal. This behavior is consistent with the equilibrium of the corresponding signaling game. Overconfident statements are used in environments that seem familiar, and we present evidence that suggests that this can occur on an unconscious level.     

The Impact of Cost Changes on Industry Entry and Exit

Increases in costs may have interesting, non-obvious effects on industry entry and exit. Three cases are possible when costs rise: the competitor neutral case, in which entry decreases and exit increases, entrant favoring, in which entry and exit both increase, and incumbent favoring, in which entry and exit both decrease. The model places restrictions on which outcomes are possible given which costs rise (marginal or fixed). The model can be used to examine the impacts of cost-increasing regulation or exogenous process innovation on industry entry and exit.      

EXIT OPTIONS AND DIVIDEND POLICY UNDER LIQUIDITY CONSTRAINTS

We introduce a post‐entry liquidity constraint to the standard model of a firm with serially correlated profitability and an irreversible exit decision. We assume that firms with no cash holdings and negative cash flow must either exit or raise new cash at a transaction cost. This creates a precautionary motive for holding cash, which must be traded off against the liquidity cost of holding cash. We characterize the optimal exit and payout policy. The direct effect of financial frictions is to impose inefficient exit, but there is also an indirect effect through higher equilibrium price that leads to inefficient survival.     

Business cycle in an oligopolistic economy with entry and exit

In this paper we introduce a microfounded macromodel with endogenous market structure, where macroeconomic fluctuations may be determined by firms’ strategic interactions, entry and exit. All the agents have the same preferences but may differ in their budget constraints and change their social status according to idiosyncratic stochastic shocks that trigger entry, while exit is caused by firms’ bankruptcies. Our numerical simulations show that birth and death of firms (associated with entry and exit) can generate macroeconomic fluctuations without technology shocks.     

Optimal trading strategies for Lévy-driven Ornstein–Uhlenbeck processes

This study derives an optimal pairs trading strategy based on a Lévy-driven Ornstein–Uhlenbeck process and applies it to high-frequency data of the S&P 500 constituents from 1998 to 2015. Our model provides optimal entry and exit signals by maximizing the expected return expressed in terms of the first-passage time of the spread process. An explicit representation of the strategy’s objective function allows for direct optimization without Monte Carlo methods. Categorizing the data sample into 10 economic sectors, we depict both the performance of each sector and the efficiency of the strategy in general. Results from empirical back-testing show strong support for the profitability of the model with returns after transaction costs ranging from 31.90% p.a. for the sector ‘Consumer Staples’ to 278.61% p.a. for the sector ‘Financials’. We find that the remarkable returns across all economic sectors are strongly driven by model parameters and sector size. Jump intensity decreases over time with strong outliers in times of high market turmoil. The value-add of our Lévy-based model is demonstrated by benchmarking it with quantitative strategies based on Brownian motion-driven processes.     

Coming and going: Experiments on endogenous group sizes for excludable public goods

When a public good is congestible, individuals wanting to provide the public good face challenges in forming groups of optimal size, selecting the members of the group, and encouraging members to contribute for the public good. We conduct a series of experiments in which subjects form groups using three different entry and exit rules. The experimental results are analyzed in terms of group size, the level of public good provision, social efficiency, congestion and group stability. We find that entry restriction improves the average earnings for some individuals compared to free entry/exit or restricted exit. For a given group size, individuals under the restricted entry rule contribute more for the provision of the collective good. Also, for a given average contribution level of group members, subjects under the restricted entry rule suffer less from the congestion problem and are better able to form groups of sizes closer to the optimal.     

Merger policy,entry, and entrepreneurship

We assess the impact of merger policy on entry and entrepreneurship. When faced with uncertainty about its prospects, and foreseeing that it may wish to leave the market should profitability prove poor, a rational entrant considers possible exit routes. Horizontal merger reduces competition post-merger which, all else being equal, lowers welfare; but merger also provides a valuable exit route. By facilitating exit and thus raising the value of entry, more lenient merger policy may stimulate entry sufficiently that welfare is increased overall. We calculate the optimal merger policy in the form of a low, but positive, profitability threshold below which merger is permitted despite the adverse impact on post-merger competition. This may be viewed as an extension of the “failing firm defence” to include ailing, low profitability firms as well as imminently failing ones. Merger policy is compared with an entry subsidy, and the implications of strategic firm behaviour for the choice of merger policy are also examined.     

Discretionary enforcement and strategic interactions between enforcement agencies and firms: a theoretical and laboratory investigation

This paper presents a game theoretic morphological analysis of the strategic interactions between environmental enforcement authorities and polluting firms. The models explore the role of discretion that such authorities enjoy, either in deciding how to pursue environmental violations (investigative and prosecutorial discretion) or in judging them (judicial discretion). The purpose is to identify both the optimal firms’ behaviour in terms of compliance, and the enforcement authorities’ optimal strategies in terms of enforcement actions to undertake. Consistent with the setting of the game theoretic models, the role of the enforcement agencies in deterring firms from polluting is, then, empirically tested by means of laboratory experiments. Laboratory evidence on compliance behaviour of firms when faced with enforcement conditions predicted by the theoretical models set up is discussed for the different experimental treatments performed. Overall, we suggest that making environmental enforcement less predictable for the firms, and thus creating a degree of uncertainty for the violators, can actually encourage deterrence and, thus, improve compliance. Thus, a partly unpredictable enforcement strategy may generate more compliance than an environmental policy that is known with certainty in advance.     

Import Quotas and Entry Deterrence

Using a simple version of the Milgrom and Roberts entry deterrence model, it is shown that adjusting a quota so that a greater volume of imports is allowed, can facilitate entry into the domestic industry. That is, the easing of a quota, can cause the domestic incumbent to shift from deterring entry to accommodating entry.     

Entry Policy and Entry Subsidies

Optimal entry policy is considered in markets served by both domestic and foreign firms. Compared with the prior entry literature, introducing foreign producers as market participants reduces incentives for entry deterrence and enhances incentives for entry subsidization. Incentives are changed because entry produces "terms-of-trade" gains. The optimal entry subsidy is analyzed under complete and incomplete information regarding the entrant's costs. Incomplete cost information creates differences in the optimal subsidy for domestic and foreign entrants, with foreign entrants relatively less subsidized. Domestic entrants with low marginal costs are oversubsidized and those with high marginal costs are undersubsidized.     

Endogenous Group Formation

While the rules governing the formation of groups engaging in collective action may have significant impact on group size and behavior of members, most experiments on public goods have been conducted with the subjects in exogenously fixed groups or of fixed sizes. We study endogenous formation of groups in a public‐goods provision game by allowing subjects to change groups under three sets of rules: free entry/exit, restricted entry with free exit, and free entry with restricted exit. We find that the rules governing entry and exit do have a significant impact on individual behavior and group‐level outcomes.     

Welfare effects of competitive lobbying efforts in international oligopoly markets

Conventionally, rent-seeking activities have been considered to deteriorate social welfare and to distort resource allocation. This paper examines whether rent-seeking behavior can improve social welfare by focusing on the welfare effects of firms’ competitive lobbying efforts when governments can impose market entry regulation against foreign firms. We demonstrate that competitive lobbying efforts can improve social welfare when such lobbying efforts are directed to reduce market entry barriers. In addition, social welfare can be maximized when the government shows the maximum sensitivity to the foreign firm's political contributions while maintaining competitive market structure. Moreover, it is shown that the dominant strategy for a domestic firm is to allocate more resources to R&D sectors while it is optimal for foreign firms is to exert more efforts in lobbying to reduce the market entry barriers when a government makes political economic approach in market entry regulations.     

A theory of competitive industry dynamics with innovation and imitation

Empirical evidence on industry life-cycle reveals a pattern in which innovation rates remain fairly stable or are perhaps even higher at early stages, while patenting increases sharply as the industry matures. This increase in patenting in later stages is accompanied by net exit and lower rates of output growth and price decline. In this paper, we develop a dynamic model of a competitive industry with innovation and imitation that is consistent with these stylized facts. We derive an equilibrium growth path, along which leading firms invest in increasing the stock of technological knowledge and choose not to prevent imitation by other firms as long as the industry remains relatively small. As the industry expands including new entry, the leaders' optimal amount of investment gradually declines. We show that under some rather general conditions, there would exist a scale of the industry where innovating firms would choose to start preventing free imitation, bringing further expansion of the industry through new entry to a halt and causing net exit.     

Coalition-Proof Nash Equilibria II. Applications

In Bernheim, Peleg, and Whinston (“Coalition-Proof Equilibria. I. Concepts,” J. Econ. Theory 42 (1987), 1–12), we proposed the notion of Coalition-Proof Nash equilibrium and Perfectly Coalition-Proof Nash equilibrium as solution concepts for strategic environments in which players can freely discuss their strategies, but cannot make binding commitments. This paper undertakes applications to several economic problems, including the behavior of Cournot oligopolists, oligopolistic entry deterrence, cooperation in finite horizon games, and social choice rule implementation.     

Entry (and exit) in a differentiated industry

The entry process in an industry embodying more or less close substitutes is considered. One examines whether the increase in the number of substitutes induces pure competition when prices are chosen noncooperatively. It is shown that these exists an upper bound on the number of firms which can compete in the market: when this upperbound is reached, any further entry entails the exit of an existing firm. In sprite of this fact, new entries imply the decrease of prices to the competitive ones.