What determines the direction of technological progress is one of the central questions that economics needs to answer. By introducing a small but fundamental generalization of Acemolgu (2002) the current paper points out the key determinants of that direction. The extended model argues that...

This note proves that unless the amount of scientists S= s_K/η_L, the proposition 15.12 in Acemoglu (2009) does not hold. Because this is an extremely restrictive requirement, it is not suitable as a proof of why the technological progress must be labor-augmenting on the BGP

This paper identifies a new mechanism leading to inefficiency in capital reallocation at theextensive margin when an economy experiences a sectoral boom. I argue that imperfectionsin the financial market and capital barriers to entry in the booming sector create amisallocation of managerial...

The very fact that utility maximization in real business cycle and New Keynesian models is intertemporal suggests the possibility of a Fisherian intertemporal futures market, which is not state-contingent. Ex-ante speaking, the addition of a futures market does not result in any difference, but...

This paper presents a re-interpretation of a New Keynesian model with capital, where zero long-run output gap restriction is eliminated and a certain type of assumption regarding risk-less nominal interest rate is adopted

In the last few decades, real GDP growth and investment in advanced countries have declined in tandem. This slowdown was not the result of weak demand (there has been no shift along the Okun curve), but of a decline in potential output growth (which has shifted the Okun curve to the left). We...

Based on a general growth model, this paper finds that the steady-state direction of technological progress is determined by the scale return of the production function and the relative factor supply elasticities. A specific version of that model extends Acemoglu (2002) to provide the underlying...

This paper analyses the effects of disease and war on the accumulation of human and physical capital. We employ an overlapping-generations frame-work in which young adults, confronted with such hazards and motivated by old-age provision and altruism, make decisions about investments in schooling...

In 1960 Theodore Schultz expounded a human capital theory of economic growth that includes three elements: 1) Countries without much human capital cannot manage physical capital effectively, 2) Economic growth can only proceed if physical capital and human capital rise together, and 3) Human...

Structural change is a relatively simple (continuous) process having restricted limit-properties. All processes which can be classified as "structural change" inherit these limit-properties. Limit-properties of processes play an important role in neoclassical growth theory. We show that (i) many...