Firms are more productive on average in larger cities. Two explanations have been offered:agglomeration economies (larger cities promote interactions that increase productivity) and firmselection (larger cities toughen competition allowing only the most productive to survive). Todistinguish...

In this paper, we study the mobility and housing choices of the elderly when retiringusing household data collected in France. From a theoretical viewpoint, retirees are likely todecrease their housing quantity because of an income loss when retiring, but they may alsoincrease it to benefit from...

Measures of urban productivity are typically positivelyassociated with city population. But is this relationship causal? Wediscuss the main sources of bias in the proper identification of agglomerationeffects. We also assess a variety of solutions that have beenproposed in the literature to deal...

We introduce new models for analyzing the mortality dependence between individuals in a couple. The mortality risk dependence is usually taken into account in the actuarial literature by introducing an Archimedean copula. This practice implies symmetric effects on the remaining lifetime of the...

A density deconvolution problem with unknown distribution of the errors is considered. To make the target density identifiable, one has to assume that some additional information on the noise is available. We consider two different models: the framework where some additional sample of the pure...

This chapter surveys advances in the field of Bayesian computation over the past twenty years, from a purely personnal viewpoint, hence containing some ommissions given the spectrum of the field. Monte Carlo, MCMC and ABC themes are thus covered here, while the rapidly expanding area of particle...