The standard efficient contract involving a monopolistic firm and a union has always been derived under the assumption that the firm operates efficiently, i.e. it uses fully its labor force. However, nothing constrains the firm to do so and production with under-utilization of labor may actually...

The interactions between mortality reductions and income growth are studied, with a special attention at their relationship prior to the Industrial Revolution, when income per head was stagnant. The choice of individual medical spending is modelled, giving a rationale for individual health...