Nonlinearities and Fractional Integration in the US Unemployment Rate*

Oxford Bulletin of Economics and Statistics - Tập 69 Số 4 - Trang 521-544 - 2007
Guglielmo Maria Caporale1, Luis A. Gil‐Alana2
1Department of Economics and Finance, Brunel University, Uxbridge, Middlesex, UK (e-mail: [email protected])
2Department of Economics, University of Navarra, Pamplona, Spain(e-mail: [email protected])

Tóm tắt

AbstractThis paper proposes a model of the US unemployment rate which accounts for both its asymmetry and its long memory. Our approach introduces fractional integration and nonlinearities simultaneously into the same framework, using a Lagrange multiplier procedure with a standard null‐limit distribution. The empirical results suggest that the US unemployment rate can be specified in terms of a fractionally integrated process, which interacts with some nonlinear functions of labour‐demand variables such as real oil prices and real interest rates. We also find evidence of a long‐memory component. Our results are consistent with a hysteresis model with path dependency rather than a non‐accelerating inflation rate of unemployment (NAIRU) model with an underlying unemployment equilibrium rate, thereby giving support to more activist stabilization policies. However, any suitable model should also include business cycle asymmetries, with implications for both forecasting and policy‐making.

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Tài liệu tham khảo

10.1002/jae.599

10.1016/S0165-1889(97)00085-7

10.2307/1344463

10.1016/0304-3932(93)90042-E

10.2307/2298020

10.1198/07350010152472661

Beran J., 1999, SEMIFAR Models

10.1002/(SICI)1099-1255(199805/06)13:3<283::AID-JAE469>3.0.CO;2-S

10.1016/0014-2921(87)90042-0

10.1093/biomet/60.2.217

Caballero R. J., 1994, ‘The cleansing effect of recessions’, American Economic Review, 84, 1350

10.1007/s00181-003-0171-7

10.1111/1468-0262.00257

10.1080/13504850110086044

10.1162/003465398557708

Clements M. P., 2002, Why Forecast Performance does not Help us Choose a Model

10.1162/10811820160080086

10.1111/j.1467-9485.1994.tb01121.x

10.1017/CBO9780511559631

10.2307/1392185

10.1016/S0304-4076(02)00089-1

Dueker M. J., 1998, Non‐monotonic LM Dynamics in Black‐Market Premia

10.1016/0304-4076(95)01751-8

Franses P. H., 1998, Modelling Asymmetric Persistence over the Business Cycle

Friedman M., 1968, ‘The role of monetary policy’, American Economic Review, 58, 1

10.1016/S0165-1765(00)00318-9

10.1002/for.790

10.1016/S0165-1765(01)00556-0

10.1023/A:1024561209304

10.1016/S0304-4076(97)00038-9

10.1002/jae.597

10.1016/0304-4076(95)01733-X

10.1111/j.1468-0084.1991.mp53001002.x

Hamermesh D. S., 1996, ‘Adjustment costs in factor demand’, Journal of Economic Literature, 34, 1264

Hansen B. E., 1997, ‘Inference in TAR models’, Studies in Nonlinear Dynamics and Econometrics, 2, 1

10.1016/S0304-3932(01)00108-8

10.1016/S0169-2070(96)00719-4

10.1111/j.1467-9892.1994.tb00174.x

10.1214/aos/1034276623

10.2307/1392288

Lindbeck A., 1988, The Insider–Outsider Theory of Employment and Unemployment

10.1016/S0169-2070(00)00057-1

Makridakis S., 1998, Forecasting Methods and Applications

Mitchell W., 1995, ‘Evidence of the unit root hypothesis in quarterly unemployment rates’, Business and Law Faculty, University of Newcastle, NSW, Australia

10.1029/96JD02512

10.1029/97WR00043

Montanari A. Rosso R.andTaqqu M. S.(2000).‘A seasonal fractionally differenced ARIMA model applied to the Nile River monthly flows at Aswan’ Water Resources Research Vol.36 pp.1249–1260.

10.1080/01621459.1998.10473696

10.1086/261226

Ooms M., 1995, Flexible Seasonal Long Memory and Economic Time Series

10.1162/003465300558696

Parker R. E., 1998, ‘The current depth‐of‐recession and unemployment‐rate forecasts’, Studies in Nonlinear Dynamics and Econometrics, 2, 151

Pfann G. A., 1993, Labor Demand and Equilibrium Wage Formation, 1

10.1002/jae.3950100203

Press W. H., 1986, Numerical Recipes: The Art of Scientific Computing

10.2307/2077963

10.1080/01621459.1994.10476881

10.1016/0164-0704(91)90057-2

10.1162/003465398557276

Rothman P., 1999, Time Irreversible Unemployment Rates

Skalin J., 2002, ‘Modelling asymmetries and moving equilibria in unemployment rates’, Journal of Econometrics, 110, 135

Strazicich M. C. Tieslau M.andLee J.(2001).‘Hysteresis in unemployment? Evidence from panel unit root tests with structural change’ mimeo Department of Economics University of North Texas Denton TX.

10.1016/S0304-4076(02)00090-8

10.1111/j.1467-9892.1987.tb00425.x

Wilkins N.(2003).‘Fractional integration at a seasonal frequency with an application to quarterly unemployment rates’ mimeo School of Finance and Economics UTS Sydney.