When Should Communities and Conservationists Monitor Exploited Resources?

When should regions bid for artistic resources?

Under a variety of assumptions, subsidized bidding for creative resources fails to spur economic growth. First, under many conditions, the resource would find an optimal location in any case. Second, the bid may be good for a winning city’s economy, but bad for the arts more generally. The bid winner is not necessarily the most appropriate home for the resource. Third, bids based on publicly av...

Priority versus brute force: when should males begin guarding resources?

When should males begin guarding a resource when both resources and guarders vary in quality? This general problem applies, for example, to migrant birds occupying territories in the spring and to precopula in crustaceans where males grab females before they molt and become receptive. Previous work has produced conflicting predictions. Theory on migrant birds predicts that the strongest competi...

When should surgeons retire?

BACKGROUND Retirement policies for surgeons differ worldwide. A range of normal human functional abilities decline as part of the ageing process. As life expectancy and their population increases, the performance ability of ageing surgeons is now a growing concern in relation to patient care. The aim was to explore the effects of ageing on surgeons' performance, and to identify current practica...

When Should Precaution Prevail

Who should monitor job sick leave?

We use a large and unique administrative dataset from Italy, covering the period 2009-2014, to investigate opportunistic behavior (moral hazard) and the effectiveness of monitoring policies related to insurance against illness-related income losses. The analysis is based on the outcome of mandatory medical visits aimed at verifying the health status of employees during sickness spells. We find ...