Current Research (A lot of this material was developed under NSF grants number SBR-9309514, SES-9110991, 0079504, and 0351451.

• Slides for A model with a multiplier for government expenditures . Joint with Sebastian Dyrda. Presented in Labor Workshop, Sept 28, 2011.

• Slides for A Theory of Credit Scoring and Competitive Pricing of Default Risk. Joint with Satyajit Chatterjee and Dean Corbae. Presented at the Labor Workshop in the Mn Econ Dept, April 2012.

• Slides for The Demographic Transition and Long-Term Marriage Trends . Joint with Shannon Seitz (BC) and Satoshi Tanaka (UMN). Presented at the Conference "Cultural Change and Economic Growth " in Munich July 2nd, 2011.

• Slides for Business Cycles and Household Formation: The Micro vs the Macro Labor Elasticity . Joint with Greg Kaplan (Penn). Presented at the 2011 Summer Institute (EFACR).

• Slides for What Accounts for the Increase in Single Households? . Joint with Ferdinando Regalia (IADB) and Jacob Short (UWO), (Presented in a course at UC3M in May 2011.

• Slides for Health and Heterogeneity. Joint with Josep Pijoan (CEMFI). Presented in a Health and Macro conference in SBA, March 2012. These were presented at the Population Colloquium, Penn, Dept of Sociology, Philadelphia, April 18, 2011 (with some later edits).

• Slides for Demand Shocks as Productivity Shocks . Joint with Yan Bai (ASU, Princeton), and Kjetil Storesletten (Mpls Fed, Oslo) (Presented at the V REDg DGEM Workshop, Madrid, Sept. 2010, Penn, Oct 13, 2010, the ones here are from U Wisc March 29, 2012).

• Slides for Inflation, Demand for Liquidity, and Welfare . Joint with Shutao Cao, Cesaire A. Meh, and Yaz Terajima (Montreal, 2010 SED, July).

• Slides for Inter-generational Redistribution in the Great Recession . Joint with Andy Glover (UMn), Jonathan Heathcote (Mpls Fed) and Dirk Krueger (Penn) (Presented at the 2010 NBER Consumption Group and in many other places. The one here is from the LSE in March 2011 ).

• Slides for Labor Share and Technology Dynamics . Joint with Sekyu Choi (UAB) (Santiago de Chile, June 2010).

• Slides for Credit Lines . Joint with Xavier Mateos-Planas (Southamption) (Madrid, June 2010).

• Slides for Aggregate and Welfare Effects of Redistribution Wealth Under Inflation and Price-Level Targeting . Joint with Cesaire A. Meh (BoC) and Yaz Terajima (BoC) (Barcelona, October 2008).

• Slides for Financial Integration, Financial Deepness and Global Imbalances . Joint with Enrique G. Mendoza and Vincenzo Quadrini (September 2007).

• Slides for Redistributive Shocks and Productivity Shocks. Joint with Raul Santaeulalia-Llopis (February 2007).

• Slides for Business cycles and house prices fluctuations Joint with Virginia Sanchez-Marcos (HULM, Boston) (March 2012).

• Slides for Methods versus Substance: Measuring the Effects of Technology Shocks on Hours Joint with Frank Schorfheide, Cristina Fuentes-Albero, Maxym Kryshko, and Raul Santaeulalia-Llopis (Written in Penn June 2007).

• Slides for A Finite Life-Private Information Theory of Unsecured Credit Joint with Satyajit Chatterjee and Dean Corbae. (March 2006).

• Slides for Social Security, Life Insurance and Annuities for Families (Joint with Jay Hong, (April 2006)).

• Slides for Salud y Heterogeneidad. Con Josep Pijoan-Mas. JORNADAS DE RIQUEZA INVESTIGACION Y POBREZA Instituto Universitario de Enfermedades Tropicales y Salud Publica de Canarias Universidad de La Laguna (Diciembre 2005). English Version

• Slides for The Role of the Sex Imbalance in Shaping Marital Status. Joint with Shannon Seitz. (November 2005).

• Slides for Life Insurance and Household Consumption joint with Jay H. Hong. (October 2005).

• Slides for Constrained Efficiency in the Neoclassical Growth Model with Uninsurable Idiosyncratic Shocks Joint with Julio Davila, Jay Hong, and Per Krusell (July 2005).

• Slides for Health and Heterogeneity. Joint with Josep Pijoan-Mas. (June 2005).

• Slides for Default and Aggregate Fluctuations in Growth Economies Joint with Makoto Nakajima (May 2004). A later version from 2010 is here.

• Slides for On the Determination of Government Debt Joint with Per Krusell and Fernando Martin (May 2004).

• Slides for Families as Shocks Joint with Luis Cubeddu. (Aug 2002).