This paper develops a long-run consumer optimization model with endogenous pollution and endogenous population. The positive check increases mortality if pollution increases. The optimal path is sustainable if it provides non-decreasing consumption for a non-decreasing population. As usually,...

Since World War II, mortality has decreased in the developing world. This paper explores the effects of this mortality fall on economic and demographic growth by a family-optimization model, in which fertility is endogenous and relative wealth yields utility because of status-seeking. The main...

Multi-sector growth (MSG) models have a special aura which is shared with Computable general equilibrium (CGE) models. Both of them, with their many sectors (industries, goods), are known as trying to convert Walrasian general equilibrium systems from an abstract economy representation into...

This paper examines a developing economy by a family-optimization model in which the number of children is a normal good in preferences. Trade liberalization generates two effects: an income effect, which raises population growth in the short run; and a gender wage effect, which decreases that...

Is it possible that the utility maximizing behavior leads the mankind to destruction? We develop a model with optimal pollution and optimal population in which population growth rate decreases along with pollution. We study if the optimal path is demographically sustainable, i.e. if it can...