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Sticky Borders*

Quarterly Journal of Economics 2008 123(2), 531-575
The stickiness and currency of pricing of traded goods play a central role in international macroeconomics; however, empirical evidence on these features is seriously limited. To address this, we use micro data on U.S. import and export prices at the dock for the period 1994–2005 and present four main results: First, the median price duration in the currency of pricing is 10.6 (12.8) months for imports (exports). Second, 90% (97%) of imports (exports) are priced in dollars. Consequently, contrary to standard modeling assumptions, for the United States, there is producer currency pricing in exports and local currency pricing in imports. Third, import price rigidity has increased by ten percentage points, with increasing rigidity in differentiated goods prices. Fourth, even conditioning on a price change, exchange rate pass-through into U.S. import prices is low, at 22%.

Trade Adjustment and Productivity in Large Crises

American Economic Review 2014 104(3), 793-831
We empirically characterize the mechanics of trade adjustment during the Argentine crisis. Though imports collapsed by 70 percent from 2000 to 2002, the entry and exit of firms or products at the country level played a small role. The within-firm churning of imported inputs, however, played a sizeable role. We build a model of trade in intermediate inputs with heterogeneous firms, fixed import costs, and roundabout production. Import demand is non-homothetic and the implications of an import price shock depend on the full distribution of firm-level adjustments. An import price shock generates a significant decline in productivity.

Banking, Trade, and the Making of a Dominant Currency

Quarterly Journal of Economics 2021 136(2), 783-830
We explore the interplay between trade-invoicing patterns and the pricing of safe assets in different currencies. Our theory highlights the following points: (i) a currency’s role as a unit of account for invoicing decisions is complementary to its role as a safe store of value; (ii) this complementarity can lead to the emergence of a single dominant currency in trade invoicing and global banking, even when multiple large candidate countries share similar economic fundamentals; (iii) firms in emerging-market countries endogenously take on currency mismatches by borrowing in the dominant currency; and (iv) the expected return on dominant-currency safe assets is lower than that on similarly safe assets denominated in other currencies, thereby bestowing an “exorbitant privilege” on the dominant currency. The theory thus provides a unified explanation for why a dominant currency is so heavily used in both trade invoicing and in global finance.

Frequency of Price Adjustment and Pass-Through*

Quarterly Journal of Economics 2010 125(2), 675-727 open access
We empirically document, using U.S. import prices, that on average goods with a high frequency of price adjustment have a long-run pass-through that is at least twice as high as that of low-frequency adjusters. We show theoretically that this relationship should follow because variable mark-ups that reduce longrun pass-through also reduce the curvature of the profit function when expressed as a function of cost shocks, making the firm less willing to adjust its price. We quantitatively evaluate a dynamic menu-cost model and show that the variable mark-up channel can generate significant variation in frequency, equivalent to 37% of the observed variation in the data. On the other hand, the standard workhorse model with constant elasticity of demand and Calvo or state-dependent pricing has difficulty matching the facts.

Fire-Sale Foreign Direct Investment and Liquidity Crises

The Review of Economics and Statistics 2005 87(3), 439-452
In placing capital market imperfections at the center of emerging market crises, the theoretical literature has associated a liquidity crisis with low foreign investment and the exit of investors from the crisis economy. However, a liquidity crisis is equally consistent with an inflow of foreign capital in the form of mergers and acquisitions (M&A). To support this hypothesis, we use a firm-level data set to show that foreign acquisitions increased by 91% in East Asia between 1996 and 1998, while intranational merger activity declined. Firm liquidity plays a significant and sizable role in explaining both the increase in foreign acquisitions and the decline in the price of acquisitions during the crisis. This contrasts with the role of liquidity in noncrisis years and in noncrisis economies in the region. This effect is also most prominent in the tradable sector. Quantitatively, the observed decline in liquidity can explain 25% of the increase in foreign acquisition activity in the tradable sectors. The nature of M&A activity supports liquidity-based explanations of the East Asian crisis and provides an explanation for the puzzling stability of FDI inflows during the crises.

Cash and the Economy: Evidence from India’s Demonetization*

Quarterly Journal of Economics 2020 135(1), 57-103
We analyze a unique episode in the history of monetary economics, the 2016 Indian “demonetization.” This policy made 86% of cash in circulation illegal tender overnight, with new notes gradually introduced over the next several months. We present a model of demonetization where agents hold cash both to satisfy a cash-in-advance constraint and for tax evasion purposes. We test the predictions of the model in the cross-section of Indian districts using several novel data sets including: the geographic distribution of demonetized and new notes for causal inference; night light activity and employment surveys to measure economic activity including in the informal sector; debit/credit cards and e-wallet transactions data; and banking data on deposit and credit growth. Districts experiencing more severe demonetization had relative reductions in economic activity, faster adoption of alternative payment technologies, and lower bank credit growth. The cross-sectional responses cumulate to a contraction in aggregate employment and night lights–based output due to the the cash shortage of at least 2 percentage points and of bank credit of 2 percentage points in 2016Q4 relative to their counterfactual paths, effects that dissipate over the next few months. Our analysis rejects monetary neutrality using a large-scale natural experiment, something that is still rare in the vast literature on the effects of monetary policy.

Emerging Market Business Cycles: The Cycle Is the Trend

Journal of Political Economy 2007 115(1), 69-102 open access
Emerging market business cycles exhibit strongly countercyclical current accounts, consumption volatility that exceeds income volatility, and “sudden stops†in capital inflows. These features contrast with developed small open economies. Nevertheless, we show that a standard model characterizes both types of markets. Motivated by the frequent policy regime switches observed in emerging markets, our premise is that these economies are subject to substantial volatility in trend growth. Our methodology exploits the information in consumption and net exports to identify the persistence of productivity. We find that shocks to trend growth—rather than transitory fluctuations around a stable trend—are the primary source of fluctuations in emerging markets. The key features of emerging market business cycles are then shown to be consistent with this underlying income process in an otherwise standard equilibrium model.

Investment Cycles and Sovereign Debt Overhang

Review of Economic Studies 2009 76(1), 1-31 open access
We characterize optimal taxation of foreign capital and optimal sovereign debt policy in a small open economy where the government cannot commit to policy and seeks to insure a risk averse domestic constituency. The expected tax on capital is shown to vary with the state of the economy, generating cyclicality in investment and debt in an environment where the first best capital stock is a constant. The government's lack of commitment induces a negative correlation between investment and the stock of government debt, a "debt overhang'' effect. If the government discounts the future at a rate higher than the market, then capital oscillates indefinitely at a level strictly below the first best. Debt relief is never Pareto improving and cannot affect the long-run level of investment. Further, restricting the government to a balanced budget can eliminate the cyclical distortion of investment.

Capital Allocation and Productivity in South Europe*

Quarterly Journal of Economics 2017 132(4), 1915-1967 open access
Starting in the early 1990s, countries in southern Europe experienced low productivity growth alongside declining real interest rates. We use data for manufacturing firms in Spain between 1999 and 2012 to document a significant increase in the dispersion of the return to capital across firms, a stable dispersion of the return to labor, and a significant increase in productivity losses from capital misallocation over time. We develop a model with size-dependent financial frictions that is consistent with important aspects of firms’ behavior in production and balance sheet data. We illustrate how the decline in the real interest rate, often attributed to the euro convergence process, leads to a significant decline in sectoral total factor productivity as capital inflows are misallocated toward firms that have higher net worth but are not necessarily more productive. We show that similar trends in dispersion and productivity losses are observed in Italy and Portugal but not in Germany, France, and Norway.

Currency Choice and Exchange Rate Pass-Through

American Economic Review 2010 100(1), 304-336 open access
We show, using novel data on currency and prices for US imports, that even conditional on a price change, there is a large difference in the exchange rate pass-through of the average good priced in dollars (25 percent) versus nondollars (95 percent). We document this to be the case across countries and within disaggregated sectors. This finding contradicts the assumption in an important class of models that the currency of pricing is exogenous. We present a model of endogenous currency choice in a dynamic price setting environment and show that the predictions of the model are strongly supported by the data.