573 research outputs found

    No arbitrage and closure results for trading cones with transaction costs

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    In this paper, we consider trading with proportional transaction costs as in Schachermayer’s paper (Schachermayer in Math. Finance 14:19–48, 2004). We give a necessary and sufficient condition for A{\mathcal{A}} , the cone of claims attainable from zero endowment, to be closed. Then we show how to define a revised set of trading prices in such a way that, firstly, the corresponding cone of claims attainable for zero endowment, A~{\tilde{ {\mathcal{A}}}} , does obey the fundamental theorem of asset pricing and, secondly, if A~{\tilde{ {\mathcal{A}}}} is arbitrage-free then it is the closure of A{\mathcal{A}} . We then conclude by showing how to represent claims

    CEO Compensation

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    This paper surveys the recent literature on CEO compensation. The rapid rise in CEO pay over the past 30 years has sparked an intense debate about the nature of the pay-setting process. Many view the high level of CEO compensation as the result of powerful managers setting their own pay. Others interpret high pay as the result of optimal contracting in a competitive market for managerial talent. We describe and discuss the empirical evidence on the evolution of CEO pay and on the relationship between pay and firm performance since the 1930s. Our review suggests that both managerial power and competitive market forces are important determinants of CEO pay, but that neither approach is fully consistent with the available evidence. We briefly discuss promising directions for future research
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