نتایج جستجو برای: o14 jel
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In a multi-industry growth model, firms require external funds to conduct productivityenhancing R&D, and are limited by financing constraints. The cost of research differs across industries, so financing constraints hinder productivity growth in some industries more than in others. Equilibrium industry dynamics map into a differences-indifferences regression specification where industry growth ...
The Great Leap Forward disaster, characterized by a collapse in grain production and a widespread famine in China between 1959 and 1961, is found attributable to a systemic failure in central planning. Wishfully expecting a great leap in agricultural productivity from collectivization, the Chinese government accelerated its aggressive industrialization timetable. Grain output fell sharply as th...
A two-region model is proposed in this paper. Manufactured goods can be produced with cottage technology under constant returns to scale or with modern technology using differentiated intermediate goods, which are produced with increasing returns to scale technology. In the model, there may be multiple equilibria, and, in such cases, the initial conditions determine the equilibrium that the eco...
In this paper we specialize the Ngai-Pissarides model of growth and structural change [American Economic Review 97 (2007), 429-443] to the case of three sectors, representing the primary (agriculture, mining), secondary (construction, manufacturing) and tertiary (services) sectors. On that basis we explore the dynamic properties of the model along the transition path to the steady-state equilib...
This paper presents a simple model of the world economy, in which productivity gains in manufacturing are responsible for the global trend of manufacturing decline, and yet, in cross-section of countries, faster productivity gains in manufacturing do not necessarily imply faster declines in manufacturing. In doing so, it aims to draw attention to the common pitfall of using the cross-country ev...
The structure of the unbound F15 nucleus is investigated using inverse kinematics resonant scattering a radioactive O14 beam impinging on CH2 target. analysis H1(O14,p)O14 and H1(O14,2p)N13 reactions allowed confirmation previously observed narrow 1/2? resonance, near two-proton decay threshold, identification two new 5/2? 3/2? resonances. newly levels by 1p emission to ground O14, sequential 2...
This papers analyses the causes behind Africas unfortunate transformation into the source of the worlds slaves over the early modern period. We discuss the economic and technological forces leading to it, and address questions such as why were most slave buyers Europeans and most slave sellers Africans. We then relate the discussion to the long-term determinants of African underdevelopment, a...
This essay analyzes the long-term lessons of the recent upturn and downturn in the telecommunications industry. It concludes that volatility and cyclicality will be an inherent part of the telecom sector in the future. To deal with such instabilities, companies and investors seek consolidation and cooperation. Government, too, is likely to stress stability more than before. Hence, an oligopoly ...
This paper argues that barriers affect both the beginning date and the subsequent pace of modern growth, and taking into account this fact enriches our knowledge of cross-country income differences. The model matches the observed inverted U-shape of cross-country income differences, which implies that a substantial fraction of current income differences is transitional. Hence, the model require...
Do transitory economic shocks affect neonatal outcomes? I show that an unexpected, monthlong blackout in Tanzania caused a sharp but temporary drop in work hours for workers in electricity-dependent jobs. Using records from a maternity ward, I document a reduction in birth weights for children exposed in utero to the blackout, and an increase in the probability of low birth weight. The reductio...
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