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Journal Article
Domestic Innovation and International Technology Diffusion as Sources of Comparative Advantage
Productivity differences across countries determine patterns of international trade?hence, comparative advantage. We use a multi-industry model of international trade to estimate a measure of industry productivity. We then quantify the effect that domestic innovation and technology diffusion have in explaining differences in productivity across countries and industries. Consistent with standard growth theories, we find the following: (i) Higher-income countries benefit more from domestic innovation than lower-income countries, whereas lower-income countries benefit more from technology ...
Working Paper
From Population Growth to TFP Growth
Using a firm-dynamics model that has been extended to include endogenous growth, we examine how population growth influences total factor productivity (TFP) growth. The most important theoretical result is that the growth rate of surviving old businesses is a "sufficient statistic" to determine the direction and the magnitude of the impact of population growth on TFP growth. Following that, the model is calibrated for Japan and the United States. The main finding of examining balanced growth paths (BGPs) with various rates of population growth is that the effect on TFP growth is sizable. ...
Working Paper
International Technology Licensing, Intellectual Property Rights, and Tax Havens
This paper investigates the determinants of international technology licensing using data for 41 countries during 1996-2012. A multi-country model of innovation and international technology licensing yields a dynamic structural gravity equation for royalty payments as a function of fundamentals, including: (i) imperfect intellectual property protection and (ii) tax havens. The gravity equation is estimated using nonlinear methods. The model’s fundamentals account for 56% of the variation in royalty payments. Counterfactual analysis sheds light on the role of intellectual property rights ...
Working Paper
Structural Change and Global Trade
Services, which are less traded than goods, rose from 58 percent of world expenditure in 1970 to 79 percent in 2015. In a trade model featuring nonhomothetic preferences and input-output linkages, we find that such structural change has restrained the growth in world trade to GDP by 16 percentage points over this period. This magnitude is similar to how much declining trade costs have boosted openness. Moreover, structural change dampens the measured gains from trade by incorporating endogenous responses of expenditure shares to the trade regime. Ongoing structural change implies declining ...
Working Paper
ICT Services and their Prices: What do they tell us about Productivity and Technology?
This paper reassesses the link between ICT prices, technology, and productivity. To understand how the ICT sector could come to the rescue of a whole economy, we extend a multi-sector model due to Oulton (2012) to include ICT services (e.g., cloud services) and use it to calibrate the steady-state contribution of the ICT sector to growth in aggregate U.S. labor productivity. Because ICT technologies diffuse through the economy increasingly via purchases of cloud and data analytic services that are not fully accounted for in the standard narrative on ICT's contribution to economic growth, the ...
Working Paper
Firm Dynamics and SOE Transformation During China’s Economic Reform
We study the reform of China’s state-owned enterprises (SOE) with a focus on the corporatization of SOEs. We first document the empirical patterns of the "grasp the large and let go of the small" policy. To quantify the implications of the reform for aggregate output and TFP, we build a three-sector firm dynamics model featuring financial frictions and endogenous firm-type choices. Our calibrated model shows that the SOE reform can increase long-run TFP by encouraging the exit of the least efficient firms in the state sector, but the magnitude of TFP growth also depends on the efficiency in ...
Working Paper
Firm Dynamics and SOE Transformation During China's Economic Reform
We study China’s state-owned enterprises (SOE) reform with a focus on the corporatization of SOEs. We first empirically document that small SOEs are more likely to exit or become privatized, whereas big SOEs are more likely to be corporatized while remaining under state ownership. We then build a heterogeneous-firm model featuring financial frictions, endogenous entry and exit, and optimal firm-type choices. Our calibrated model suggests that in the long run, the SOE reform increases the aggregate output by facilitating resource reallocation to the private sector. Along the transition, the ...
Working Paper
Aggregate Implications of Changing Sectoral Trends
We find disparate trend variation in TFP and labor growth across major U.S. production sectors over the post-WWII period. When aggregated, these sector-specific trends imply secular declines in the growth rate of aggregate labor and TFP. We embed this sectoral trend variation into a dynamic multi-sector framework in which materials and capital used in each sector are produced by other sectors. The presence of capital induces important network effects from production linkages that amplify the consequences of changing sectoral trends on GDP growth. Thus, in some sectors, changes in TFP and ...
Journal Article
Was China's Housing Boom a Bubble?
This article investigates the factors influencing nationwide and city-level house price trends in China during the 2000s and early 2010s, considering the country’s significant structural transformation and urbanization. The analysis reveals that "fundamental forces" effectively explain house price appreciation at the national level and in most cities, with Beijing and Shanghai being notable exceptions. Income growth is the primary driver of rising house prices, while population growth also plays a significant role. However, in many cases, the impact of population growth on house prices is ...
Working Paper
Output Hysteresis and Optimal Monetary Policy
We analyze the implications for monetary policy when deficient aggregate demand can cause a permanent loss in potential output, a phenomenon we term output hysteresis. In the model, the incomplete stabilization of a temporary shortfall in demand reduces the return to innovation, thus reducing total factor productivity growth and generating a permanent loss in output. Using a purely quadratic approximation to welfare under endogenous growth, we derive normative implications for monetary policy. Away from the zero lower bound (ZLB), optimal commitment policy sets interest rates to eliminate ...