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Working Paper
Production and Inventory Dynamics under Ambiguity Aversion
We propose a production-cost smoothing model with Knightian uncertainty due to ambiguity aversion to study the joint behavior of production, inventories, and sales. Our model can explain four facts that previous studies find difficult to account for simultaneously: (i) the high volatility of production relative to sales, (ii) the low ratio of inventory-investment volatility to sales volatility, (iii) the positive correlation between sales and inventories, and (iv) the negative correlation between the inventory-to-sales ratio and sales. We find that the stock-out avoidance motive (Kahn 1987) ...
Working Paper
Growth and Welfare Gains from Financial Integration Under Model Uncertainty
We build a robustness (RB) version of the Obstfeld (1994) model to study the effects of financial integration on growth and welfare. Our model can account for the empirically observed heterogeneity in the relationship between growth and volatility for different countries. The calibrated model shows that financial integration leads to significantly larger gains in growth and welfare for advanced countries than developing countries, with some developing countries experiencing growth and welfare loss in financial integration. Our analytical solutions help uncover the key mechanisms by which this ...
Working Paper
Labor Market Institutions and the Effects of Financial Openness
We propose a new channel to explain why developing countries may fail to benefit from financial globalization, based on labor market institutions. In our model, financial openness in a developing country with a rigid labor market leads to capital outflow, and both employment and output fall. In contrast, financial openness in a developing country with a flexible labor market benefits the country. Our model suggests that enhancing labor market flexibility is a complementary reform for developing countries opening capital accounts.
Journal Article
What Has Driven the Recent Increase in Retirements?
During the pandemic, the share of retirees in the U.S. population rose much faster than its normal pace. Typically, an increase in this share is driven by more people transitioning from employment to retirement. However, we show that the recent increase was instead driven by fewer people transitioning from retirement back into employment, likely due to pandemic-related health risks. More retirees may rejoin the workforce as these health risks fade, but the retirement share is unlikely to return to a normal level for some time.
Journal Article
Has China’s Growth Reached a Turning Point?
A new measure of China?s economic activity shows its momentum has increased in the first half of the year?however, an analysis of its underlying forces suggests this momentum may not be sustainable. In addition, strength in policy-related variables has been waning, creating additional downside risks to near-term growth.
Journal Article
China’s slowing housing market and GDP growth.
Journal Article
Evaluating a Year of Oil Price Volatility
Troy Davig, Nida ak?r Melek, Jun Nie, Lee Smith, and Didem Tzemen find changes in expectations of future oil supply relative to demand are the main drivers of the recent oil price decline.
Working Paper
Unemployment Insurance during a Pandemic
The CARES Act implemented in response to the COVID-19 crisis dramatically increases the generosity of unemployment insurance (UI) benefits, triggering concerns about its substantial impact on unemployment. This paper combines a labor market search-matching model with the SIR-type infection dynamics to study the effects of CARES UI on both unemployment and infection. More generous UI policies create work disincentives and lead to higher unemployment, but they also reduce infection and save lives. Economic shutdown policies further amplify these effects of UI policies. Quantitatively, the CARES ...
Journal Article
U.S.exports and foreign economic growth : which regions matter most?
U.S. export growth tends to vary with changes in different foreign regions' economic growth rates. This article estimates how much change in U.S. export growth may be associated with a rise or fall in a given region's GDP growth.
Working Paper
Wealth distribution with state-dependent risk aversion