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%.

We study the comovement among stock prices and exchange rates in a three-good, three-country, Centre-Periphery, dynamic equilibrium model in which the Centre's agents face portfolio constraints. We characterize equilibrium in closed form for a broad class of portfolio constraints, solving for stock prices, terms of trade, and portfolio holdings. We show that portfolio constraints generate wealth transfers between the Periphery countries and the Centre, which increase the comovement of the stock prices across the Periphery. We associate this excess comovement caused by portfolio constraints with the phenomenon known as contagion. The model generates predictions consistent with other important empirical results such as amplification and flight-to-quality effects.