We consider the problem of private information retrieval (PIR) fromN non-colluding and replicated databases when the user is equipped with a cache that holds an uncoded fraction r from each of the K stored messages in the databases. We assume that the databases are unaware of the cache content. We investigate D∗(r) the optimal download cost normalized with the message size as a function of K, N...

In cost-sharing games with delays, a set of agents jointly uses subset resources. Each resource has fixed cost that to be shared by the players, and each agent nonshareable player-specific delay for resource. A separable protocol determines shares are budget-balanced, separable, guarantee existence pure Nash equilibria (PNE). We provide black-box reductions reducing design such an approximation...

BACKGROUND Other than the UK, The Netherlands has no formal threshold for cost-per-QALY values defined yet. For example, a cutoff value at €20,000 per QALY is sometimes mentioned in various discussions, however it has no formal status at all. Yet, since 2005, all new innovative do have to go through a cost-effectiveness evaluation though, with the assessment being focused on the methodology rat...

This article aims to use a bargaining power model reduce moral hazard—in the form of entrepreneurial effort shirking—and derive an optimum sharing ratio Profit and Loss Sharing (PLS) contract that involves Venture Capitalist Entrepreneur. The reveals following interesting findings. First, under complete information—where has - offers entrepreneur profit is less than her capital contribution rat...