Our societies are witnessing a steady increase in longevity. This demographic evolution is accompanied by some convergence across countries, whereas substantial longevity inequalities persist within nations. The goal of this paper is to survey some crucial implications of changing longevity on...

Our societies are witnessing a steady increase in longevity. This demographic evolution is accompanied by some convergence across countries, whereas substantial longevity inequalities persist within nations. The goal of this paper is to survey some crucial implications of changing longevity on...

The world’s aging population is expected to shape the future of economies across the globe. Without behavioral adaptation by current and future generations, this demographic transformation is likely to slow down economic growth. However, aging will also induce behavioral adjustments in savings...

Bulgaria is undergoing a profound socio-economic transformation brought about by extraordinary demographic change. Between 1950 and 1990, Bulgaria’s population grew from 7.3 million to 8.8 million and then declined to 7.5 million by 2010. Low birth rates and high mortality rates combined with...

We develop a model to rationalize and examine so-called "research bubbles", i.e. research activities based on overoptimistic beliefs about the impact of this research on the economy. Research bubbles occur when researchers selfselect into research activities and the government aggregates the...

This paper considers a three-overlapping-generations model of endogenous growth wherein human capital is the engine of growth. It first contrasts the laissez-faire and the optimal solutions. Three possible accumulation regimes are distinguished. Then it discusses a standard set of tax-transfer...