Minimizing the dependency ratio in a population with below-replacement fertility through immigration

por Simon, C., Belyakov, A.O., Feichtinger, G.
Publicado 2012

The hammer and the jab: Are COVID-19 lockdowns and vaccinations complements or substitutes?

por Caulkins, J.P., Grass, D., Feichtinger, G., Hartl, R.F., Kort, P.M., Kuhn, M., Prskawetz, A., Sanchez-Romero, M., Seidl, A., Wrzaczek, S.
Publicado 2023