Below-replacement fertility is a common problem among the rich countries with far-reaching economic and social implications. The problem is more acute in some economically fast-growing Asian countries where the fertility decline has been more rapid and the current fertility rates have reached...

I reexamine the inverted-U relationship between competition and innovation (modeled and tested by Aghion et al. (2005)) by using data from publicly traded manufacturing firms in the United States. I control for the possible endogeneity of competition by using a trade-weighted average of industry...

We first estimate a dynamic game for the global automobile industry and then compute a Markov Perfect equilibrium to study the equilibrium relationship between market structure and innovation. The key state variable in the model is the efficiency level of each firm and the market structure is...

I add intangible capital to a variant of the neoclassical growth model and study the implications for cross-country income differences. I calibrate the parameters associated with intangible capital by using new estimates of investment in intangibles by Corrado et al. (2006). When intangible...

Prior to the Asian economic crisis in 1997, Singapore's official projected medium-term GDP growth target was set at 7% per annum. Since then, the targeted growth rate has been reduced to 5%. This paper examines the implications of the 5% growth target on the labor requirements of the Singapore...

I add intangible capital to a variant of the neoclassical growth model and study the implications of this extension for cross-country income differences. I calibrate the parameters associated with intangible capital by using new estimates of investment in intangibles by Corrado et al. [2006]. I...

We study the relationship between market structure and innovation in the global automobile industry from 1982 to 2004 using the dynamic industry framework of Ericson and Pakes (1995). Firms optimally choose a continuous level of innovation in a strategic and forward-looking manner, while...

I re-examine the inverted-U relationship between competition and innovation (originally modeled and tested by Aghion et al. [2005]) by using data from publicly traded manufacturing firms in the US. I control for the possible endogeneity of competition by using various measures of foreign...

In this short note I clarify two features of Figure 2.3 in Barro and Sala-i-Martin (2004). The figure, as it appeared in the first and second editions of the book, is confusing if not wrong. I hope this note will serve as a corrigendum to the figure.