Atomic and continuum effects in L10 magnets are investigated. Emphasis is on the competition between ferromagnetism, antiferromagnetism, and noncollinear order in both perfect and imperfect structures, and on the temperature dependence of the magnetic anisotropy. The applicability of micromagnetic and atomistic approaches depends on the length scales involved, but there is a broad range of phen...

In this paper we use a general model of imperfect competition to predict welfare changes within an open-access fishery after it transitions to individual transferable quota (¡TQ) management. Although related research has explored the effects of market power in the harvesting sector on ÍTQ performance, none has considered the implications of an imperfectly competitive processing sector. Addressi...

Localized Competition, Multimarket Operation and Collusive Behavior by Frank Verboven This paper studies collusive behavior in a repeated oligopoly model with localized competition. Private information about the rivals' past actions naturally arises from this product market structure. The resulting communication problems imply that firms should adopt strategies with sufficiently lenient punishm...

This paper estimates a dynamic oligopoly model to assess economic consequence of a horizontal merger, which took place in 1970 to create the second-largest steel producer in the world. The paper solves for a Markov perfect Nash equilibrium of the model and simulates welfare e¤ects of the horizontal merger. Estimates reveal that the merger enhanced production e¢ ciency for the merging party by t...

The large volume of intra-industry trade is often cited as a critical element favoring trade theories based on increasing returns and imperfect competition over those with constant returns and perfect competition. The former provide an elegant account of intra-industry trade, while the latter, it is often argued, cannot. This paper provides an account of intra-industry trade based squarely on c...

We analyze differentiated retail industries where shops engage in two-stage competition with respect to opening hours and prices. We explore the effects of consumers’ shopping time flexibility by comparing bi-directional consumers with forwardor backward-oriented consumers, who can either postpone or advance their shopping, but not both. We demonstrate that retailers with longer opening hours c...

For speaker identification, a robust and effective feature extraction method is necessary. But in the current circumstance, there exists no perfect feature that could optimally characterize physiological difference among speakers regardless of personal variation. A soft competition scheme for optimal fusion of diverse feature sets is applied to speaker identification in order to achieve the imp...

We introduce a simple model of oligopolistic competition where firms first build capacity, and then, after observing the capacity decisions, choose a reservation price at which they are willing to supply their capacities. This model describes many markets more realistically than the model of Kreps and Scheinkman [Kreps, D., Scheinkman, J., 1983. Quantity precommitment and Bertrand competition y...

Localized Competition, Multimarket Operation and Collusive Behavior by Frank Verboven This paper studies collusive behavior in a repeated oligopoly model with localized competition. Private information about the rivals' past actions naturally arises from this product market structure. The resulting communication problems imply that firms should adopt strategies with sufficiently lenient punishm...

Private banks often blame state guarantees to distort competition by giving public banks the advantage of lower funding costs. In this paper I show that if borrowers perceive the public bank as supporting economic development, private banks may be able to separate firms by self selection, enter the market, and obtain profits in equilibrium despite their cost disadvantage. The public bank’s comp...