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Working Paper
What are the Price Effects of Trade? Evidence from the U.S. and Implications for Quantitative Trade Models
This paper finds that U.S. consumer prices fell substantially due to increased trade with China. With comprehensive price micro-data and two complementary identification strategies, we estimate that a 1pp increase in import penetration from China causes a 1.91% decline in consumer prices. This price response is driven by declining markups for domestically-produced goods, and is one order of magnitude larger than in standard trade models that abstract from strategic price-setting. The estimates imply that trade with China increased U.S. consumer surplus by about $400,000 per displaced job, and ...
Journal Article
What has homeland security cost? an assessment: 2001-2005
While homeland security is widely seen as an important national objective, the costs of this effort are not well understood. An analysis of public and private expenditures on homeland security shows that overall spending rose by $44 billion between 2001 and 2005?a clear increase but one that represents a gain of only of 1 percent as a share of U.S. GDP. Private sector expenditures increased very modestly in dollar terms and remained unchanged as a fraction of the sector's GDP.
Working Paper
Optimal Public Debt with Life Cycle Motives
Public debt can be optimal in standard incomplete market models with infinitely lived agents, since the associated capital crowd-out induces a higher interest rate. The higher interest rate encourages individuals to save and, hence, better self-insure against idiosyncratic labor earnings risk. Even though individual savings behavior is a crucial determinant of the optimality of public debt, this class of economies abstracts from empirically observed life cycle savings patterns. Thus, this paper studies how incorporating a life cycle affects optimal public debt. We find that while the ...