This paper analyzes the impact of three termination rules for repeatedgame experiments. We compare treatments with a known finite end, an unknown end and two variants with a random termination rule. The termination rules do not significantly effect cooperation rates. JEL classification numbers: C72, C92, D21, D43

A paired whole-lake experiment was conducted on two remote, atmospherically driven lakes in the Experimental Lakes Area (ELA) to examine the stresses of trophic condition on air–water exchange and settling fluxes of polychlorinated biphenyls (PCBs). Lake 227 (L227) and Lake 110 (L110) are similar in volume, surface area, and watershed area but differ significantly in trophic status. The two lak...

BACKGROUND A clinical trial was conducted in order to assess the efficacy of rifaximin, a broad-spectrum antibiotic with negligible gastrointestinal absorption, in comparison with metronidazole, a commonly employed antimicrobial drug, in dogs with chronic enteropathy. Twenty-four pet dogs were randomly enrolled into two different groups: MET group (10 dogs) and RIF group (14 dogs). Dogs of MET ...

The endogenous choice of timing is discussed in a vertically di®erentiated duopoly where quality improvement requires a ̄xed convex cost. The timing decision concerns the quality stage. Using an extended game with observable delay, it is shown that only simultaneous equilibria can arise. This puts into question the ability of Stackelberg games to describe the entry process. J.E.L. classi ̄cation...

Algol-Genius, an Algol 60 implementation with features from COBOL, was the brainchild of Börje Langefors. In 1964, assembler was the dominant programming language, but Algol-Genius broke that trend among Datasaab D21 customers. Algol-Genius programs were still in production in the late nineties.

We compare a credit rating agency’s incentives to acquire costly information when it is only paid for giving favorable ratings the corresponding agency up-front, i.e., irrespective of assigned. show that, in presence moral hazard, contingent fees provide stronger dynamic than up-front and may induce higher social welfare. When fee structure chosen by agency, arise as an equilibrium outcome, lin...

We investigate the long-run dynamic interaction between fashion (brand loyalty) and industry structure. We analyze how this interaction affects the importance of fashion in the market for a product in the different stages of its life and characterize conditions under which fashion loses or preserves its relevance over time. The model can explain why some products survive fashion changes. (JEL D...

We find that hotel mergers increase occupancy. In some specifications, price also rises. These effects occur only in markets with high capacity utilization and high uncertainty. These findings lead us to reject simple models of price or quantity competition in favor of models of “revenue management,” where firms price to fill available capacity in the face of uncertain demand. JEL classificatio...

The potential for in situ turbulence to inhibit dinoflagellate population growth has been demonstrated by experimentally exposing dinoflagellate cultures to quantified shear flow. However, despite interest in understanding environmental factors that affect the growth of toxic dinoflagellates, little is known of the effect of shear on the growth of toxin-producing dinoflagellate species. Culture...