Publications

Résumé Low fertility rates, mortality outstripping the birth rate, aging and pop-ulation contraction characterize a new demographic transition (the so-called “fifth stage”). This chapter seeks to evaluate how this phenomenon has impacted the Japanese economic structure and overall productivity. We extend Autor and Dorn’s (2013) theoretical framework to introduce two key mechanisms that have been at play since the 2000s: (i) a growing complementarity between goods and services consumption, and (ii) the substitution of older workers engaged in routine tasks with technological capital. The model predicts an increasing concentration of low-skilled workers in the service sector, which should aggravate productivity gaps between industry and services. Using stochastic frontier models and EU-KLEMS data, we compute industry-by-industry TFP growth frontiers in order to check if theoretical predictions match with Japanese reality.
Mots clés Japan, Economic structure, Technological change, Productivity, Demographic transition
Publication HAL Google Scholar
Résumé For some smooth special case of generalized $\varphi-$divergences as well as of new divergences (called scaled shift divergences), we derive approximations of the omnipresent (weighted) $\ell_{1}-$distance and (weighted) $\ell_{1}-$norm.
Mots clés Divergence Kullback-Leibler, Divergence analysis, $\ell1-$distance/norm, Generalized $\varphi-$divergences
Publication HAL Google Scholar