International audienceFor economists, it is not easy to grapple with a phenomenon as complex as inheritance or wealth transfers, which is inherently multidisciplinary. They are thus puzzled by the specific decline of wealth transfer taxation, which has become highly unpopular today, but also by the current lack of interest in the very issue of inheritance, which was formerly the subject of passionate debate among the most illustrious thinkers and social reformers. These changes appear all the more surprising in the light of the massive and worrying process of property accumulation (patrimonialization) that our societies have been experiencing since 1980, a process that is detrimental not only to economic growth, but also to equality of oppo...