RESEARCH INTERESTS:  

·         Econometrics:  Panel data regression; Spatial econometrics; Quantile regression.

·         Economics:       Auction theory.

·         Quality and Reliability:  Percentile limits; Event probability; Control charts.

·         Statistics:  Data Transformation; Likelihood-related inference theory.

·         E-Commerce:  Online price comparison; Price dispersion; Price dynamics.

 

 

PUBLICATIONS:  

 

Journal Articles

1.        Yang, Z. L. (2009). A Robust LM Test for Spatial Error Components.  Regional Science and Urban Economics, Forthcoming.

2.        Yang, Z. L. and Huang, J. H. (2009). A Transformed Random Effects Model with Applications. Applied Stochastic Models in Business and Industry, Accepted.

3.        Yang, Z. L. and Tse, Y. K. (2008).  Generalized LM tests for functional form and heteroscedasticity.  Econometrics Journal, 11, 349-376.

4.        Yang, Z. L., Wu, E. K. H. and Desmond, A. F. (2008).  Inference for general parametric functions in Box-Cox-type transformation models.  Canadian Journal of Statistics, 36, 301-319.

5.        Yang, Z. L. and  Lin, K. J. (2007).  Improved common shape estimation for Weibull distributions.  Applied Stochastic Models in Business and Industry, 23, 373-383.

6.        Yang, Z. L. and Tse, Y. K. (2007).  A corrected plug-in method for quantile interval construction through a transformed regression.  Journal of Business and Economic Statistics, 25, 356-376.

7.        Yang, Z. L., Tse, Y. K. and Bai, Z. D. (2007).  Statistics with estimated parameters.  Statistica Sinica, 17, 817-837.

8.        Yang Z. L., Xie, M. and Wong, A. C. M. (2007).  A Unified Confidence Interval for Reliability Related Weibull Quantities.  Journal of Statistical Computation and Simulation, 77, 365-378.

9.        Yu, J., Yang, Z. L. and Zhang, X. B. (2006).  A class of nonlinear stochastic volatility models and its implications on pricing currency options.  Computational Statistics and Data Analysis, 51, 2218-2231.

10.     Yang, Z. L. (2006).  A modified family of power transformations.  Economics Letters, 92, 14-19.

11.     Xing, X. L., Yang, Z. L. and Tang, F. F. (2006).  A comparison of time-varying online price and price dispersion between multichannel and Dotcom DVD retailers.  Journal of Interactive Marketing, 20, 3-10.

12.     Yang, Z. L. Li, C. W. and Tse, Y. K. (2006).  Functional form and spatial dependence in dynamic panels.  Economics Letters, 91, 138-145.

13.     Yang, Z. L. and Tse, Y. K. (2006). Modeling the firm-size distribution using Box-Cox heteroscedastic regression.  Journal of Applied Econometrics, 21, 541-653.

14.     Koh, W. T.H. Yang. Z. L. and Zhu, L. J (2006).  Lottery rather than waiting-line auction.  Social Choice and Welfare, 27, 289-310.

15.     Yang, Z. L. and Tsui, A. K. (2004).  Analytically calibrated Box-Cox percentile limits for duration and event-time models.  Insurance: Mathematics and Economics, 35, 649-677.

16.     Yang Z. L. and Chen, G. (2004). Tests of transformation in nonlinear regression. Economics Letters, 84, 391-398.

17.     Xing, X. L., Tang, F. F. and Yang, Z. L. (2004).  Pricing Dynamics in the Online Consumer Electronics Market.  Journal of Product and Brand Management, 13, 429-441.

18.     Leung, H. M. Tan, S. L. and Yang, Z. L. (2004). What has luck got to do with economic development? An interpretation of resurgent Asia’s growth experience.  Journal of Policy Modeling, 26, 373-385.

19.     Yang, Z. L. and  Abeysinghe, T. (2003).  A score test for Box-Cox functional form.  Economics Letters, 79, 107-115.

20.     Yang, Z. L. and Xie, M. (2003).  Efficient estimation of the Weibull shape parameter based on a modified profile likelihood.  Journal of Statistical Computation and Simulation, 73, 115-123.

21.     Yang. Z. L., See, S. P and Xie, M. (2003). Transformation approaches for the construction of Weibull prediction interval.  Computational Statistics and Data Analysis, 43, 357-368.  

22.     Yang, Z. L. and Abeysinghe, T. (2002). An explicit variance formula for the Box-Cox functional form estimator.  Economics Letters, 76, 259-265.

23.     Yang. Z. L. (2002).  Comment on "Box-Cox transformation in linear models: large sample theory and tests of normality" by Chen, G., Lockhart, R. A. and Stephens, M. A.  Canadian Journal of Statistics, 30, 222-226.

24.     Yang. Z. L. (2002).  Median estimation through a regression transformation.  Canadian Journal of Statistics, 30, 235-242.

25.     Yang, Z. L., Xie, M., Kuralmani, V. and Tsui, K.L. (2002).  On the performance of geometric chart with estimated control limits.  Journal of Quality Technology, 34, 448-458.

26.     Yang, Z. L., See, S. P. and Xie, M. (2002).  An investigation of transformation-based prediction interval for the Weibull median life.  Metrika, 56, 19-29.

27.     Yang, Z. L. (2001).  Predicting a future median life through a power transformation. Lifetime Data Analysis, 7, 305-317.

28.     Yang, Z. L., and Lee, R. T. C. (2001). On the failure rate estimation for the inverse Gaussian distribution.  Journal of Statistical Computation and Simulation, 71, 201-213.

29.     Xie, M., Yang, Z. L. and Gaudoin, O. (2000).  More on the mis-specification of the shape parameter with Weibull-to-exponential transformation.  Quality and Reliability Engineering International, 16, 281-290.

30.     Yang, Z. L. and Xie, M.(2000). Process monitoring for the exponentially distributed Characteristics through an Optimal Normalizing Transformation.  Journal of Applied Statistics, 27, 1050-1063.

31.     Yang, Z. L. (2000).  Predictive densities for the lognormal distribution and their applications.  Microelectronics Reliability, 40, 1051-1059.

32.     Yang, Z. L. (2000). A new statistics for regression transformation.  Test, 9, 123-132.

33.     Yang, Z. L. (1999). Maximum likelihood predictive densities for the inverse Gaussian distribution with application to reliability and lifetime predictions.  Microelectronics Reliability, 39, 1413-1421.

34.     Yang, Z. L. (1999). Predicting a future lifetime through Box-Cox transformation.  Lifetime Data Analysis, 5, 265-279.

35.     Yang, Z. L. (1999). Estimating transformation and its effects on Box-Cox T-ratio. Test, 8, 167-190.

36.     Yang, Z. L. (1999). An alternative approximation to the variance of transformation Score.  Journal of Statistical Computation and Simulation, 62, 181-188.

37.     Desmond, A. F. and Yang, Z. L. (1998).  A comparison of likelihood and Bayesian inference for the threshold parameter in the inverse Gaussian distribution.  Communications in Statistics, Theory and Methods, 27, 2173-2183.

38.     Yang, Z. L. (1998).  On robustness of usual confidence region under transformation misspecification.  Journal of Statistical Computation and Simulation, 61, 175-190.

39.     Hooper, P. M. and Yang, Z. L. (1997).  Confidence intervals following Box-Cox transformation.  Canadian Journal of Statistics, 25, 401-416.

40.     Yang, Z. L. (1997).  More on the estimation of Box-Cox transformation.  Communications in Statistics, Simulation and Computation, 26, 1063-1074.

41.     Yang, Z. L. (1996).  Some asymptotic results on Box-Cox transformation methodology.  Communications in Statistics, Theory and Methods, 25, 403-415.

42.     Desmond, A. F. and Yang, Z. L. (1995).  Shortest prediction intervals for the Birnbaum-Saunders distribution.  Communications in Statistics, Theory and Methods, 24, 1383-1401.

 

Recent Working Papers

1.        Yang, Z. L. (2009). A Robust LM Test for Spatial Error Components.  [download paper]

2.        Yang, Z. L. (2008). Tests for Spatial Dependence under Distributional Misspecification. [download paper]

3.        Su, L. J. and Yang, Z. L. (2008).  Asymptotics and Bootstrap for Transformed Panel Data Regressions. [download paper]

4.        Su, L. J. and Yang Z. L. (2007).  Instrumental Variable Quantile Estimation of Spatial Autoregressive Models.  [download paper]

5.        Yang, Z. L. (2006). Joint Modeliing and Testing for Local and Global Spatial Externalities.  [download paper]

6.        Su, L. J. and Yang Z. L. (2006). QML Estimation of Dynamic Panel Data Models with Spatial Errors. [download paper]

7.        Yang, Z. L. (2005). Quasi-Maximum Likelihood Estimation for Spatial Panel Data Regressions.  [download paper]

8.        Yang, Z. L. and Huang, J. H. (2004). A Transformed Random Effects Model with Applications. [download paper]