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作者：Solow, D; Vairaktarakis, G; Piderit, SK; Tsai, MC
作者单位：University System of Ohio; Case Western Reserve University; University System of Ohio; Case Western Reserve University
摘要：A mathematical model is presented for studying the effects of interactions among team members on the process of replacing members of a team in an organization. The model provides the ability to control the number of members that interact with each individual on the team. Through the use of analysis and computer simulations, it is shown how the amount of interaction affects the tradeoff between the expected performance and the number of replacements and interviews needed to find a good team usi...
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作者：Agarwal, R; Bayus, BL
作者单位：University of Illinois System; University of Illinois Urbana-Champaign; University of North Carolina; University of North Carolina Chapel Hill
摘要：In contrast to the prevailing supply-side explanation that price decreases are the key driver of a sales takeoff, we argue that outward shifting supply and demand curves lead to market takeoff. Our fundamental idea is that sales in new markets are initially low because the first commercialized forms of new innovations are primitive. Then, as new firms enter, actual and perceived product quality improves (and prices possibly drop), which leads to a takeoff in sales. To provide empirical evidenc...
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作者：Kou, SG
作者单位：Columbia University
摘要：Brownian motion and normal distribution have been widely used in the Black-Scholes option-pricing framework to model the return of assets. However, two puzzles emerge from many empirical investigations: the leptokurtic feature that the return distribution of assets may have a higher peak and two (asymmetric) heavier tails than those of the normal distribution, and an empirical phenomenon called volatility smile in option markets. To incorporate both of them and to strike a balance between real...
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作者：Pich, MT; Loch, CH; De Meyer, A
作者单位：INSEAD Business School; INSEAD Business School
摘要：This article develops a model of a project as a payoff function that depends on the state of the world and the choice of a sequence of actions. A causal mapping, which may be incompletely known by the project team, represents the impact of possible actions on the states of the world. An underlying probability space represents available information about the state of the world. Interactions among actions and states of the world determine the complexity of the payoff function. Activities are end...
