Traditional portfolio optimization models specify placement of capital as rather irrevocably and fully at risk through investment horizon(s) or continuously. Under this constraint, asset class allocation typically serves as primary mode of diversification, pursuing risk moderation by seeking to...

This Chapter analyzes the ways in which digital platforms such as Uber and Airbnb are perfecting the deal and lowering transaction costs. The chapter argues that the three stages of pre-deal, deal-making, and post-deal, 1) search costs; 2) bargaining and decision costs; and 3) policing and...

In finance, decision making and choice requires that we assume that asset prices tend to trend. This assumption also logically enables us to construct exits to limit losses and protect capital. But investors have good reason to be uneasy regarding the potential for significant loss when using a...

In this paper we explore the underlying consumer heterogeneity in competitive markets for subscription-based IT services that exhibit network effects. Insights into consumer heterogeneity with respect to a given service are paramount in forecasting future subscriptions, understanding the impact...

We construct a simple trading process that is based on the maximization, at each stage, of the total distributable surplus. We show that this process converges to a Pareto optimal allocation. Keywords and Phrases: Trading process, Distributable surplus, Benefit function

I investigate the optimal way of organizing and motivating the production of information by a team of agents. I compare two modes of production. In the "team outputs" setting, agents produce public information jointly and their individual contributions are indistinguishable. In the "individual...

This paper analyses and compares optimal relational contracts between a principal/firm and a set of agents when (a) only aggregate output can be observed, and (b) individual outputs can be observed. We show that the optimal contract under (a) is a team incentive scheme where each agent is paid a...

An information transaction entails the purchase of information. Formally, it consists of an information structure together with a price. We develop an index of the appeal of information transactions, which is derived as a dual to the agent's preferences for information. The index of information...

Risk aversion is traditionally defined in the context of lotteries over monetary payoffs. This paper extends the notion of risk aversion to a more general setup where outcomes (consequences) may not be measurable in monetary terms and people may have fuzzy preferences over lotteries, i.e. they...

Although some firms use dynamic pricing to respond to demand fluctuations, other firms claim that fairness concerns prevent them from raising prices during periods when demand exceeds capacity. This paper explores conditions in which fairness concerns can or cannot cause shortages. In our model,...