Oleg Itskhoki Ph.D. Candidate in Economics Harvard University Working Papers Inequality and Unemployment in a Global Economy July 2008; with Elhanan Helpman and Stephen J. Redding Frequency of Price Adjustment and Pass-through June 2008; with Gita Gopinath Slides; NBER Working Paper No.14200 Revision requested by the Quarterly Journal of Economics Wages, Unemployment and Inequality with Heterogeneous Firms and Workers May 2008; with Elhanan Helpman and Stephen J. Redding; under review Slides; NBER Working Paper No.14122 Currency Choice and Exchange Rate Pass-through September, 2007;  with Gita Gopinath and Roberto Rigobon Slides; NBER Worlking Paper No.13432 Revision requested by the American Economic Review Labor Market Rigidities, Trade and Unemployment Revised version: June, 2008; with Elhanan Helpman Slides; Old version: NBER Working Paper No.13365 (August, 2007) Revision requested by the Review of Economic Studies How Expensive is Commitment? May, 2007; Slides Published Papers Asymmetric Price Rigidity and the Optimal Rate of Inflation [in Russian] Economics and Mathematics Methods, forthcoming in July 2008 Old version: NES Best Student Paper No.2004/075 [in English] Model Selection and Paradoxes of Prediction [in English] Quantile, 1: 43-51, September 2006 [in Russian] Comments, questions and suggestions are welcome here.