TY - JOUR AU - Choi,Horag AU - Mark,Nelson C. TI - Trending Current Accounts JF - National Bureau of Economic Research Working Paper Series VL - No. 15244 PY - 2009 Y2 - August 2009 UR - http://www.nber.org/papers/w15244 L1 - http://www.nber.org/papers/w15244.pdf N1 - Author contact info: Horag Choi Department of Economics Monash University 900 Dandenong Road Caulfield East, VIC 3145 Australia Tel: +61-3-9903-2848 Fax: +61-3-9903-1128 E-Mail: horag.choi@buseco.monash.edu Nelson Mark Department of Economics and Econometrics University of Notre Dame Notre Dame, IN 46556 Tel: 574/631-0518 Fax: 574/631-4783 E-Mail: nmark@nd.edu AB - Trending current accounts pose a challenge for intertemporal open-economy macro models. This paper shows that a two-country representative-agent business cycle model is able to explain the historical time-paths of the US and Japanese current accounts, both of which display trends but in opposite directions. Households have a state-dependent subjective discount factor such that they become relatively impatient (patient) when societal consumption is abnormally high (low). We present agents in the model with historical observations on the exogenous state variables, run the economy, and compare the current account implied by the model with the data. We find that the model generates national saving behavior that matches the current account's trend. Investment dynamics are important for explaining current account fluctuations around the trend, but not for the trend itself. The model also accounts for the timing of cyclical current account fluctuations around the trend. ER -