First version: April, 2001 This version: February, 2005 ABSTRACT This paper analyzes a model of investment with fixed investment costs and capital market imperfections. In this model finance influences the level of capital firms hold, as well as the frequency at which they invest. In consequence investment reacts nonlinearly with respect to shocks to productivity and liquidity. Liquidity and pr...

This paper offers new evidence on the sources of cross-country income differences. It exploits the idea that observing immigrant workers from different countries in the same labor market provides an opportunity to estimate their relative human capital endowments without having to adjust for other sources of country-specific productivity differences. Based on such estimates, a neoclassical growt...

This paper investigates the empirical validity of different classes of ‘development trap’ models of economic growth. Quah (1993) finds that the cross country distribution of per capita income is moving toward a twin peaked distribution. This finding has supported and encouraged a large theoretical literature on development traps that produce twin peaks through physical and human capital accumul...

a r t i c l e i n f o For a set of 14 developing countries I evaluate whether differences in wage gaps between sectors – estimated from individual-level wage data – have meaningful effects on aggregate productivity. Under the most generous assumptions regarding the homogeneity of human capital, my analysis shows that eliminating wedges between wages in different sectors leads to gains in output...

In the early and mid-1990s, most economists and policymakers supported rapid capital account liberalization for emerging markets. Liberalization was expected to have widespread benefits. It was predicted to increase capital inflows, thereby financing investment and raising growth. Capital inflows—especially in the form of direct investment—would provide improved technology and management techni...

Heterogeneity is ubiquitous in firm-level and sectoral data. Equilibrium models, however, typically assume a representative firm, as in Andrew B. Abel and Olivier J. Blanchard (1983). The representative firm paradigm leaves no role for the distribution of capital. We model capital reallocation in a general equilibrium model with two sectors. Capital adjustment costs capture illiquidity in our m...

How do firms adjust their balance sheets and reallocate capital stock in response to recurrent productivity or profitability shocks? Why does capital reallocation fluctuate procyclically, while the potential benefits to reallocate appear to be countercyclical? To answer these questions, this paper develops a tractable dynamic general equilibrium model. In the model, firms face idiosyncratic pro...

This work provides an explanation for the puzzling trade-off between labor productivity and capital accumulation, occurred in Italian energy sector from the late 1980s onwards. By using a vector autoregressive model, we decompose labor productivity into technological and non technological shocks. We find that: (1) labor productivity responds positively to technological shocks, leading to a tran...