1. Ravn, Morten O. & Uhlig, Harald, 2001. "On Adjusting the HP-Filter for the Frequency of Observations," CEPR Discussion Papers 2858, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
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   • Ravn, M.O. & Uhlig, H., 1997. "On adjusting the hp-filter for the frequency of observations," Discussion Paper 50, Tilburg University, Center for Economic Research. [Downloadable!]
   • Morten O. Ravn & Harald Uhlig, 2001. "On Adjusting the HP-Filter for the Frequency of Observations," CESifo Working Paper Series CESifo Working Paper No. , CESifo Group Munich. [Downloadable!]
2. Peter Gottschalk & Robert Moffitt, 1994. "The Growth of Earnings Instability in the U.S. Labor Market," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 25(1994-2), pages 217-272. [Downloadable!]
3. William J. Baumol & Edward N. Wolff, 1998. "Speed of Technical Progress and Length of the Average Interjob Period," Macroeconomics 9805022, EconWPA. [Downloadable!]
4. Katherine Baicker & Claudia Goldin & Lawrence F. Katz, 1997. "A Distinctive System: Origins and Impact of U.S. Unemployment Compensation," NBER Working Papers 5889, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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   • Katherine Baicker & Claudia Goldin & Lawrence F. Katz, 1998. "A Distinctive System: Origins and Impact of U.S. Unemployment Compensation," NBER Chapters, in: The Defining Moment: The Great Depression and the American Economy in the Twentieth Century, pages 227-264 National Bureau of Economic Research, Inc. [Downloadable!]
5. Katz, Lawrence F & Murphy, Kevin M, 1992. "Changes in Relative Wages, 1963-1987: Supply and Demand Factors," The Quarterly Journal of Economics, MIT Press, vol. 107(1), pages 35-78, February. [Downloadable!] (restricted)
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   • Lawrence F. Katz & Kevin M. Murphy, 1991. "Changes in Relative Wages, 1963-1987: Supply and Demand Factors," NBER Working Papers 3927, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
   • Katz, L.F. & Murphy, K.M., 1991. "Changes in Relative Wages, 1963-1987: Supply and Demand Factors," Harvard Institute of Economic Research Working Papers 1580, Harvard - Institute of Economic Research.
6. Chinhui Juhn & Kevin Murphy & Robert Topel, 2002. "Current Unemployment, Historically Contemplated," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 33(2002-1), pages 79-136. [Downloadable!]
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8. Gary Burtless, 1983. "Why Is Insured Unemployment So Low?," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 14(1983-1), pages 225-254. [Downloadable!]
9. Robert Shimer, 1999. "Why is the U.S. Unemployment Rate So Much Lower?," NBER Chapters, in: NBER Macroeconomics Annual 1998, volume 13, pages 11-74 National Bureau of Economic Research, Inc. [Downloadable!]
10. Katharine G. Abraham & Robert Shimer, 2001. "Changes in Unemployment Duration and Labor Force Attachment," NBER Working Papers 8513, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
11. Katz, Lawrence F. & Autor, David H., 1999. "Changes in the wage structure and earnings inequality," Handbook of Labor Economics, in: O. Ashenfelter & D. Card (ed.), Handbook of Labor Economics, edition 1, volume 3, chapter 26, pages 1463-1555 Elsevier. [Downloadable!] (restricted)
12. Chinhui Juhn & Kevin M. Murphy & Robert H. Topel, 1991. "Why Has the Natural Rate of Unemployment Increased over Time?," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 22(1991-2), pages 75-142. [Downloadable!]
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    • Giovanni L. Violante, 2000. "Technological Acceleration, Skill Transferability and the Rise in Residual Inequality," ILR working papers 063, Institute for Labour Research. [Downloadable!]
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17. Andrews, Donald W K, 1993. "Tests for Parameter Instability and Structural Change with Unknown Change Point," Econometrica, Econometric Society, vol. 61(4), pages 821-56, July. [Downloadable!] (restricted)
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1. José A.F. Machado & Pedro Portugal & Juliana Guimaraes, 2006. "U.S. Unemployment Duration: Has Long Become Longer or Short Become Shorter?," IZA Discussion Papers 2174, Institute for the Study of Labor (IZA). [Downloadable!]
   Other versions:
   • Pedro Portugal, 2007. "U.S. Unemployment Duration: Has Long Become Longer or Short Become Shorter?," Working Papers 2007/17, Czech National Bank, Research Department. [Downloadable!]
2. Thomas B. King, 2005. "Labor productivity and job-market flows: trends, cycles, and correlations," Supervisory Policy Analysis Working Papers 2005-04, Federal Reserve Bank of St. Louis. [Downloadable!]