Prof. WAN Tze-Kin Alan
温子堅教授
Associate Provost (Academic Affairs)
Chair Professor of Business Statistics
Address
6223, Cheng Yick Chi Building, City University of Hong Kong
Phone
+852 34427146
Fax
+852 34420189
Email
Personal Web
https://sites.google.com/view/profalanwan/
Research Areas
Model Averaging and Selection
Varying-Coefficient Semi-parametric Models
Missing and Censored Data
Quantile Regression
Qualifications
PhD - Econometrics (University of Canterbury)
MCom - Economics and Econometrics (University of Canterbury)
BEcon - Economics and Econometrics (University of Sydney)
Biography
Professor Alan Wan is Chair Professor of Business Statistics and the University's Associate Provost of Academic Affairs. Alan spent a significant part of his youth in Australia and New Zealand, where he pursued his undergraduate and postgraduate studies at the University of Sydney and the University of Canterbury respectively. A paper from his Ph.D. thesis was awarded the A.R. Bergstrom Prize in Econometrics, an award designated for New Zealanders under the age of 26. Prior to returning to his native Hong Kong, Alan was on the faculty in the Department of Econometrics at the University of New South Wales in Australia. He has edited one book and authored about 110 peer-reviewed journal articles in the fields of Econometrics and Statistics. His research interests span a wide range of topics, including model averaging and selection, distributed inference, missing and censored data, varying-coefficient models, and pre-test and shrinkage estimation. Alan's research has appeared in leading journals including the Journal of the American Statistical Association, Biometrics, Journal of Econometrics, Journal of Business & Economic Statistics, Econometric Theory, Journal of Machine Learning Research, and INFORMS Journal on Computing. He has successfully secured research funding from the Hong Kong Research Grants Council, the National Natural Science Foundation of China, the Australian Research Council, and the British Academy. Alan has served or is currently serving on the editorial boards of Applied Stochastic Models in Business and Industry, Communications in Statistics, and Econometrics and Statistics. Additionally, he is a panel member for the Hong Kong Research Grants Council's Competitive Research Funding Scheme for the Local Self-Financing Degree Sector, and acted as a panel judge for the Samuel Wilks Memorial Award of the American Statistical Association, where he stood out as the sole non-North American judge among a ten-member panel from 2019 to 2024. Alan has received various honours including the CityUHK President's Award in 2016 and election as a Fellow of the Institute of Mathematics & Its Applications (IMA), U.K., in 2023. He was President of the Hong Kong Statistical Society from 2021 to 2024 and the Head of the Department of Management Sciences from 2020 to 2024, and held an Adjunct Professorship at the Shanghai University of Finance and Economics betwen 2010 and 2013.
Awards
| Award Title | Institution |
|---|---|
| Elected Fellow | Institute of Mathematics & Its Applications (U.K.) |
| President's Award | City University of Hong Kong |
| Elected Member | International Statistical Institute |
| Applied Research Excellence Award (Business & Management Category) | City University of Hong Kong |
| A.R. Bergstrom Prize in Econometrics | New Zealand Association of Economists |
Research Grants
PI: "Research on U-ERM Distributed Estimation Theory and Methods in the Face of Big Data", General Programme - National Natural Science Foundation of China, Amount: RMB 450,000 (2023-2026), Alan Wan, Ian McKeague, Geoffrey Tso, Zhixin Zhou, Xianpeng Zong
PI: "Addressing the massive data challenge with distributed inference for U-Statistics-based empirical risk minimization", General Research Fund - Hong Kong Research Grants Council, Amount: $550,836 (2023-2025), Alan Wan, Yong Zhou
PI: "New developments of model averaging in Econometrics and Statistics", General Programme - National Natural Science Foundation of China, Amount: RMB 500,000 (2020-2023), Alan Wan, Geoffrey Tso, Yuying Sun, Yan Gao, Wei Zhao, Lanjie Chen, Xianpeng Zong
PI: "Statistical inference after model averaging", General Research Fund - Hong Kong Research Grants Council, Amount: $441,000 (2019-2022), Alan Wan, Xinyu Zhang
PI: "Quantile regression analysis with missing and length-biased data", General Research Fund - Hong Kong Research Grants Council, Amount: $230,554 (2014-2016), Alan Wan, Yong Zhou
PI: "Some aspects of frequentist model averaging in Statistics", General Research Fund - Hong Kong Research Grants Council, Amount: $312,000 (2009-2011), Alan Wan
PI: "Wavelet Methods for change-point detection in Econometrics", Competitive Earmarked Research Grant - Hong Kong Research Grants Council, Amount: $198,250 (2008-2010), Alan Wan, Yong Zhou
PI: "Missing data and estimating equations", Competitive Earmarked Research Grant - Hong Kong Research Grants Council, Amount: $298,200 (2007-2009), Alan Wan
PI: "A Bayesian econometric study of immigration and earnings inequality in Hong Kong", Competitive Earmarked Research Grant - Hong Kong Research Grants Council, Amount: $247,926 (2004-2006), Alan Wan, Hikaru Hasegawa
PI: "On the sensitivity of econometric estimators and tests to covariance misspecification", Competitive Earmarked Research Grant - Hong Kong Research Grants Council, Amount: $348,720 (2002-2004), Alan Wan
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Publications
Journal Publications and Reviews
Cui, Guangyuan; Li, Na; Wan, Alan T. K.; Zhang, Xinyu / Model Averaging for Estimating Treatment Effects with Binary Responses. October 2024; In: Applied Stochastic Models in Business and Industry.
Zheng, Siming; Wan, Alan T. K.; Zhou, Yong / Semiparametric recovery of central dimension reduction space with nonignorable nonresponse. May 2024; In: Statistica Neerlandica. Vol. 78, No. 2, pp. 374-396
Zhao, Zhihao; Zhang, Xinyu; Zou, Guohua; Wan, Alan T. K.; Tso, Geoffrey K. F. / Model averaging for estimating treatment effects. February 2024; In: Annals of the Institute of Statistical Mathematics. Vol. 76, No. 1, pp. 73-92
Zou, Jiahui; Yuan, Chaoxia; Zhang, Xinyu; Zou, Guohua; Wan, Alan T. K. / Model averaging for support vector classifier by cross-validation. October 2023; In: Statistics and Computing. Vol. 33, No. 5
Chen, Lanjue; Wan, Alan T.-K.; Zhang, Shuyi; Zhou, Yong / Distributed Algorithms for U-statistics-based Empirical Risk Minimization. September 2023; In: Journal of Machine Learning Research. Vol. 24
Chen, Lanjue; Su, Jin; Wan, Alan T. K.; Zhou, Yong / A Simple Divide-and-Conquer-based Distributed Method for the Accelerated Failure Time Model. August 2023; In: Journal of Computational and Graphical Statistics.
ZHENG, Siming; WAN, Alan T. K.; ZHOU, Yong / Missing data analysis with sufficient dimension reduction. June 2023; In: Canadian Journal of Statistics. Vol. 51, No. 2, pp. 630-651
Wan, Alan T. K.; Zhao, Wei; Gilbert, Peter; Zhou, Yong / A varying-coefficient partially linear transformation model for length-biased data with an application to HIV vaccine studies. May 2023; In: International Journal of Biostatistics. Vol. 19, No. 1, pp. 131-162
Wang, Miaomiao; Zhang, Xinyu; Wan, Alan T. K.; You, Kang; Zou, Guohua / Jackknife model averaging for high-dimensional quantile regression. March 2023; In: Biometrics. Vol. 79, No. 1, pp. 178-189
Liao, Jun; Wan, Alan T.K.; He, Shuyuan; Zou, Guohua / FREQUENTIST MODEL AVERAGING FOR THE NONPARAMETRIC ADDITIVE MODEL. January 2023; In: Statistica Sinica. Vol. 33, No. 1, pp. 401-430
Zhu, Rong; Zhang, Xinyu; Wan, Alan T. K.; Zou, Guohua / Kernel Averaging Estimators. 2023; In: Journal of Business and Economic Statistics. Vol. 41, No. 1, pp. 157–169
Zhou, Jianhong; Wan, Alan T. K.; Yu, Dalei / Frequentist model averaging for zero-inflated Poisson regression models. December 2022; In: Statistical Analysis and Data Mining. Vol. 15, No. 6, pp. 679-691
Zhu, Rong; Zhang, Xinyu; Wan, Alan T.K.; Zou, Guohua / Frequentist model averaging under inequality constraints. December 2022; In: Journal of Statistical Planning and Inference. Vol. 221, pp. 100-113
Sun, Yuying; Zhang, Xinyu; Wan, Alan T.K.; Wang, Shouyang / Model averaging for interval-valued data. September 2022; In: European Journal of Operational Research. Vol. 301, No. 2, pp. 772-784
Liao, Jun; Wan, Alan T.K.; He, Shuyuan; Zou, Guohua / Optimal model averaging for multivariate regression models. May 2022; In: Journal of Multivariate Analysis. Vol. 189
Li, Jialiang; Lv, Jing; Wan, Alan T. K.; Liao, Jun / AdaBoost Semiparametric Model Averaging Prediction for Multiple Categories. March 2022; In: Journal of the American Statistical Association. Vol. 117, No. 537, pp. 495-509
Nelson, Barry L.; Wan, Alan T. K.; Zou, Guohua; Zhang, Xinyu; Jiang, Xi / Reducing Simulation Input-Model Risk via Input Model Averaging. 2021; In: INFORMS Journal on Computing. Vol. 33, No. 2, pp. 672-684
Dufour, Jean-Marie; Hecq, Alain; Wan, Alan / EcoSta special issue on theoretical econometrics. July 2020; In: Econometrics and Statistics. Vol. 15, pp. 1-2
Zhao, Shangwei; Ma, Yanyuan; Wan, Alan T. K.; Zhang, Xinyu; Wang, Shouyang / Model averaging in a multiplicative heteroscedastic model. June 2020; In: Econometric Reviews. Vol. 39, No. 10, pp. 1100-1124
Fan, Shuqin; Zhao, Wei; Wan, Alan T. K.; Zhou, Yong / A composite nonparametric product limit approach for estimating the distribution of survival times under length-biased and right-censored data. 2020; In: Statistics and its Interface. Vol. 13, No. 2, pp. 221-235
Zhu, Rong; Wan, Alan T. K.; Zhang, Xinyu; Zou, Guohua / A Mallows-Type Model Averaging Estimator for the Varying-Coefficient Partially Linear Model. June 2019; In: Journal of the American Statistical Association. Vol. 114, No. 526, pp. 882-892
Parmeter, Christopher F.; Wan, Alan T. K.; Zhang, Xinyu / Model averaging estimators for the stochastic frontier model. June 2019; In: Journal of Productivity Analysis. Vol. 51, No. 2-3, pp. 91–103
Chen, Xuerong; Chen, Yan; Wan, Alan T.K.; Zhou, Yong / On the asymptotic non-equivalence of efficient-GMM and MEL estimators in models with missing data. June 2019; In: Scandinavian Journal of Statistics. Vol. 46, No. 2, pp. 361-388
Qiu, Zhiping; Wan, Alan T. K.; Zhou, Yong; Gilbert, Peter B. / SMOOTHED RANK REGRESSION FOR THE ACCELERATED FAILURE TIME COMPETING RISKS MODEL WITH MISSING CAUSE OF FAILURE. January 2019; In: Statistica Sinica. Vol. 29, No. 1, pp. 23-46
WEI, Wenhua; ZHOU, Yong; WAN, Alan T. K. / A semiparametric linear transformation model for general biased-sampling and right-censored data. 2019; In: Statistics and its Interface. Vol. 12, No. 1, pp. 77-92
Wei, Wenhua; Wan, Alan T. K.; Zhou, Yong / Partially linear transformation model for length-biased and right-censored data. April 2018; In: Journal of Nonparametric Statistics. Vol. 30, No. 2, pp. 332-367
Chen, Longmei; Wan, Alan T. K.; Tso, Geoffrey; Zhang, Xinyu / A model averaging approach for the ordered probit and nested logit models with applications. March 2018; In: Journal of Applied Statistics. Vol. 45, No. 16, pp. 1-41
Wan, Alan T. K.; Xie, Shangyu; Zhou, Yong / A varying coefficient approach to estimating hedonic housing price functions and their quantiles. September 2017; In: Journal of Applied Statistics. Vol. 44, No. 11, pp. 1979-1999
Ullah, Aman; Wan, Alan T. K.; Wang, Huansha; Zhang, Xinyu; Zou, Guohua / A semiparametric generalized ridge estimator and link with model averaging. 2017; In: Econometric Reviews. Vol. 36, No. 1-3, pp. 370-384
Li, Rui; Wan, Alan T.K.; You, Jinhong / Semiparametric GMM estimation and variable selection in dynamic panel data models with fixed effects. August 2016; In: Computational Statistics and Data Analysis. Vol. 100, pp. 401-423
Wan, Alan T. K.; You, Jinhong; Zhang, Riquan / A Seemingly Unrelated Nonparametric Additive Model with Autoregressive Errors. 2016; In: Econometric Reviews. Vol. 35, No. 5, pp. 894-928
Xie, Shangyu; Wan, Alan T.K.; Zhou, Yong / Quantile regression methods with varying-coefficient models for censored data. August 2015; In: Computational Statistics and Data Analysis. Vol. 88, pp. 154-172
CHEN, Xuerong; WAN, Alan T. K.; ZHOU, Yong / Efficient Quantile Regression Analysis With Missing Observations. July 2015; In: Journal of the American Statistical Association. Vol. 110, No. 510, pp. 723-741
Chen, XinJie; Fan, YanQin; Wan, Alan; Zou, GuoHua / Post-J test inference in non-nested linear regression models. June 2015; In: Science China Mathematics. Vol. 58, No. 6, pp. 1203-1216
You, Jinhong; Wan, Alan T. K.; Liu, Shu; Zhou, Yong / A varying-coefficient approach to estimating multi-level clustered data models. June 2015; In: Test. Vol. 24, No. 2, pp. 417-440
Chen, Xuerong; Wan, Alan T. K.; Zhou, Yong / A quantile varying-coefficient regression approach to length-biased data modeling. December 2014; In: Electronic Journal of Statistics. Vol. 8, No. 2, pp. 2514-2540
Xie, Shangyu; Zhou, Yong; Wan, Alan T. K. / A Varying-Coefficient Expectile Model for Estimating Value at Risk. October 2014; In: Journal of Business and Economic Statistics. Vol. 32, No. 4, pp. 576-592
Ma, Yunbei; Wan, Alan T. K.; Chen, Xuerong; Zhou, Yong / On estimation and inference in a partially linear hazard model with varying coefficients. October 2014; In: Annals of the Institute of Statistical Mathematics. Vol. 66, No. 5, pp. 931-960
Wan, Alan T.K.; Zhang, Xinyu; Wang, Shouyang / Frequentist model averaging for multinomial and ordered logit models. January 2014; In: International Journal of Forecasting. Vol. 30, No. 1, pp. 118-128
Zhang, Xinyu; Wan, Alan T.K.; Zou, Guohua / Model averaging by jackknife criterion in models with dependent data. June 2013; In: Journal of Econometrics. Vol. 174, No. 2, pp. 82-94
Wang, HaiYing; Zou, Guohua; Wan, Alan T.K. / Adaptive LASSO for varying-coefficient partially linear measurement error models. January 2013; In: Journal of Statistical Planning and Inference. Vol. 143, No. 1, pp. 40-54
Zhang, Xinyu; Wan, Alan T. K.; Zhou, Sherry Z. / Focused information criteria, model selection, and model averaging in a Tobit model with a nonzero threshold. January 2012; In: Journal of Business and Economic Statistics. Vol. 30, No. 1, pp. 132-142
Wang, Haiying; Zou, Guohua; Wan, Alan T.K. / Model averaging for varying-coefficient partially linear measurement error models. 2012; In: Electronic Journal of Statistics. Vol. 6, pp. 1017-1039
Zhou, Yong; Wan, Alan T.K.; Yuan, Yuan / Combining least-squares and quantile regressions. December 2011; In: Journal of Statistical Planning and Inference. Vol. 141, No. 12, pp. 3814-3828
Magnus, Jan R.; Wan, Alan T.K.; Zhang, Xinyu / Weighted average least squares estimation with nonspherical disturbances and an application to the Hong Kong housing market. March 2011; In: Computational Statistics and Data Analysis. Vol. 55, No. 3, pp. 1331-1341
Liang, Hua; Zou, Guohua; Wan, Alan T.K.; Zhang, Xinyu / Optimal weight choice for frequentist model average estimators. 2011; In: Journal of the American Statistical Association. Vol. 106, No. 495, pp. 1053-1066
Schomaker, Michael; Wan, Alan T. K.; Heumann, Christian / Frequentist Model Averaging with missing observations. December 2010; In: Computational Statistics and Data Analysis. Vol. 54, No. 12, pp. 3336-3347
He, Angela W.W.; Kwok, Jerry T.K.; Wan, Alan T.K. / An empirical model of daily highs and lows of West Texas Intermediate crude oil prices. November 2010; In: Energy Economics. Vol. 32, No. 6, pp. 1499-1506
Zhou, Yong; Wan, Alan T.K.; Xie, Shangyu; Wang, Xiaojing / Wavelet analysis of change-points in a non-parametric regression with heteroscedastic variance. November 2010; In: Journal of Econometrics. Vol. 159, No. 1, pp. 183-201
Wan, Alan T.K.; Zhang, Xinyu; Zou, Guohua / Least squares model averaging by Mallows criterion. June 2010; In: Journal of Econometrics. Vol. 156, No. 2, pp. 277-283
Cheung, Yan-Leung; Cheung, Yin-Wong; He, Angela W.W.; Wan, Alan T.K. / A trading strategy based on Callable Bull/Bear Contracts. April 2010; In: Pacific Basin Finance Journal. Vol. 18, No. 2, pp. 186-198
He, Angela W.W.; Wan, Alan T. K. / Predicting daily highs and lows of exchange rates: A cointegration analysis. November 2009; In: Journal of Applied Statistics. Vol. 36, No. 11, pp. 1191-1204
Zhang, Xinyu; Chen, Ti; Wan, Alan T.K.; Zou, Guohua / Robustness of Stein-type estimators under a non-scalar error covariance structure. November 2009; In: Journal of Multivariate Analysis. Vol. 100, No. 10, pp. 2376-2388
Qin, Huaizhen; Wan, Alan T.K.; Zou, Guohua / On the sensitivity of the one-sided t test to covariance misspecification. September 2009; In: Journal of Multivariate Analysis. Vol. 100, No. 8, pp. 1593-1609
Wan, Alan T.K.; Zhang, Xinyu / On the Use of Model Averaging in Tourism Research. July 2009; In: Annals of Tourism Research. Vol. 36, No. 3, pp. 525-532
Zou, Guohua; Zeng, Jie; Wan, Alan T.K.; Guan, Zhong / Stein-type improved estimation of standard error under asymmetric LINEX loss function. April 2009; In: Statistics. Vol. 43, No. 2, pp. 121-129
Cheung, Yan-Leung; Cheung, Yin-Wong; Wan, Alan T. K. / A high-low model of daily stock price ranges. March 2009; In: Journal of Forecasting. Vol. 28, No. 2, pp. 103-119
Ohtani, Kazuhiro; Wan, Alan T. K. / Comparison of the Stein and the usual estimators for the regression error variance under the Pitman nearness criterion when variables are omitted. January 2009; In: Statistical Papers. Vol. 50, No. 1, pp. 151-160
Zhou, Yong; Wan, Alan T. K.; Wang, Xiaojing / Estimating equations inference with missing data. September 2008; In: Journal of the American Statistical Association. Vol. 103, No. 483, pp. 1187-1199
WAN, Tze-Kin / Wage earnings of Chinese immigrants: a semi-parametric analysis. 2008; In: The International Journal of Applied Economics and Finance. Vol. 2, No. 1, pp. 28 - 35
Akdeniz, Esra; Akdeniz, Fikri; Wan, Alan T.K.; Chen, Ti / Further results on the generalized Liu-type estimators under the balanced loss function. November 2007; In: Model Assisted Statistics and Applications. Vol. 2, No. 4, pp. 213-223
Wan, Alan T.K.; Zou, Guohua; Qin, Huaizhen / On the sensitivity of the restricted least squares estimators to covariance misspecification. November 2007; In: Econometrics Journal. Vol. 10, No. 3, pp. 471-487
Bao, Helen X.H.; Wan, Alan T.K. / Improved estimators of hedonic housing price models. July 2007; In: Journal of Real Estate Research. Vol. 29, No. 3, pp. 267-301
Zou, Guohua; Wan, Alan T.K.; Wu, Xiaoyong; Chen, Ti / Estimation of regression coefficients of interest when other regression coefficients are of no interest: The case of non-normal errors. April 2007; In: Statistics and Probability Letters. Vol. 77, No. 8, pp. 803-810
Wan, Alan T.K.; Zou, Guohua; Banerjee, Anurag / The power of autocorrelation tests near the unit root in models with possibly mis-specified linear restrictions. February 2007; In: Economics Letters. Vol. 94, No. 2, pp. 213-219
Wan, Alan T.K.; Zou, Guohua; Ohtani, Kazuhiro / Further results on optimal critical values of pre-test when estimating the regression error variance. March 2006; In: Econometrics Journal. Vol. 9, No. 1, pp. 159-176
Wan, Alan T.K. / On discrimination and the status of immigrants in the Hong Kong labour market. 2006; In: Economics Bulletin. Vol. 10, No. 1
Akdeniz, Fikri; Wan, Alan T. K.; Akdeniz, Esra / Generalized liu type estimators under Zellner's balanced loss function. 2005; In: Communications in Statistics - Theory and Methods. Vol. 34, No. 8, pp. 1725-1736
Bao, Helen X.H.; Wan, Alan T.K. / On the use of spline smoothing in estimating hedonic housing price models: Empirical evidence using Hong Kong data. September 2004; In: Real Estate Economics. Vol. 32, No. 3, pp. 487-507
Qin, Huaizhen; Wan, Alan T.K. / On the properties of the t- and F-ratios in linear regressions with nonnormal errors. August 2004; In: Econometric Theory. Vol. 20, No. 4, pp. 690-700
Akdeniz, Fikri; Yüksel, Güzin; Wan, Alan T.K. / The moments of the operational almost unbiased ridge regression estimator. June 2004; In: Applied Mathematics and Computation. Vol. 153, No. 3, pp. 673-684
Wan, Alan T.K.; Zou, Guohua / On unbiased and improved loss estimation for the mean of a multivariate normal distribution with unknown variance. January 2004; In: Journal of Statistical Planning and Inference. Vol. 119, No. 1, pp. 17-22
Zou, Guohua; Wan, Alan T.K. / Admissible and minimax estimation of the parameter n in the binomial distribution. May 2003; In: Journal of Statistical Planning and Inference. Vol. 113, No. 2, pp. 451-466
Wan, Alan T.K.; Zou, Guohua / Optimal critical values of pre-tests when estimating the regression error variance: Analytical findings under a general loss structure. May 2003; In: Journal of Econometrics. Vol. 114, No. 1, pp. 165-196
Wan, Alan T.K.; Chaturvedi, Anoop; Zou, Guohua / Unbiased estimation of the MSE matrices of improved estimators in linear regression. February 2003; In: Journal of Applied Statistics. Vol. 30, No. 2, pp. 173-189
Srivastava, Viren K.; Wan, Alan T.K. / Separate versus system methods of Stein-rule estimation in seemingly unrelated regression models. November 2002; In: Communications in Statistics - Theory and Methods. Vol. 31, No. 11, pp. 2077-2099
Chaturvedi, Anoop; Wan, Alan T.K.; Singh, Shri P. / Improved multivariate prediction in a general linear model with an unknown error covariance matrix. October 2002; In: Journal of Multivariate Analysis. Vol. 83, No. 1, pp. 166-182
Wan, Alan T.K. / On generalized ridge regression estimators under collinearity and balanced loss. July 2002; In: Applied Mathematics and Computation. Vol. 129, No. 2-3, pp. 455-467
Ohtani, Kazuhiro; Wan, Alan T. K. / ON THE USE OF THE STEIN VARIANCE ESTIMATOR IN THE DOUBLE k-CLASS ESTIMATOR IN REGRESSION. 2002; In: Econometric Reviews. Vol. 21, No. 1, pp. 121-134
Ho, Ada K.F.; Wan, Alan T.K. / Testing for covariance stationarity of stock returns in the presence of structural breaks: An intervention analysis. 2002; In: Applied Economics Letters. Vol. 9, No. 7, pp. 441-447
Chaturvedi, Anoop; Wan, Alan T. K.; Singh, Shri P. / Stein-rule restricted regression estimator in a linear regression model with nonspherical disturbances. January 2001; In: Communications in Statistics - Theory and Methods. Vol. 30, No. 1, pp. 55-68
Wan, Alan T.K.; Chaturvedi, Anoop / Double k-class estimators in regression models with non-spherical disturbances. 2001; In: Journal of Multivariate Analysis. Vol. 79, No. 2, pp. 226-250
Wan, Alan T.K.; Zou, Guohua; Lee, Andy H. / Minimax and Γ -minimax estimation for the Poisson distribution under LINEX loss when the parameter space is restricted. October 2000; In: Statistics and Probability Letters. Vol. 50, No. 1, pp. 23-32
Geng, W. J.; Wan, Alan T.K. / On the sampling performance of an inequality pre-test estimator of the regression error variance under LINEX loss. October 2000; In: Statistical Papers. Vol. 41, No. 4, pp. 453-472
Wan, Alan T. K.; Chaturvedi, Anoop / Operational variants of the minimum mean squared error estimator in linear regression models with non-spherical disturbances. June 2000; In: Annals of the Institute of Statistical Mathematics. Vol. 52, No. 2, pp. 332-342
Zou, Guohua; Wan, Alan T. K. / Simultaneous estimation of several stratum means under error-in-variables superpopulation models. June 2000; In: Annals of the Institute of Statistical Mathematics. Vol. 52, No. 2, pp. 380-396
Shalabh; Wan, Alan T.K. / Stein-rule estimation in mixed regression models. May 2000; In: Biometrical Journal. Vol. 42, No. 2, pp. 203-214
Wan, Alan T.K.; Ohtani, Kazuhiro / Minimum mean-squared error estimation in linear regression with an inequality constraint. April 2000; In: Journal of Statistical Planning and Inference. Vol. 86, No. 1, pp. 157-173
Chaturvedi, Anoop; Wan, Alan T. K. / Exact results on the inadmissibility of the feasible generalized least squares estimator in regression models with non-spherical disturbances. 2000; In: Biometrical Journal. Vol. 42, No. 4, pp. 481-487
Wan, Alan T.K.; Kurumai, Hiroko / An iterative feasible minimum mean squared error estimator of the disturbance variance in linear regression under asymmetric loss *. November 1999; In: Statistics and Probability Letters. Vol. 45, No. 3, pp. 253-259
Wan, Alan T. K. / A note on almost unbiased generalized ridge regression estimator under asymmetric loss. 1999; In: Journal of Statistical Computation and Simulation. Vol. 62, No. 4, pp. 411-421
Ohtani, Kazuhiro; Wan, Alan T.K. / On the sampling performance of an improved Stein inequality restricted estimator. June 1998; In: Australian and New Zealand Journal of Statistics. Vol. 40, No. 2, pp. 181-187
Wan, Alan T.K.; Griffiths, William E. / Bayesian estimation of the linear regression model with an uncertain interval constraint on coefficients. January 1998; In: Statistical Papers. Vol. 39, No. 1, pp. 109-118
Wan, Alan T.K. / The exact density and distribution functions of the inequality constrained and pre-test estimators. September 1997; In: Statistical Papers. Vol. 38, No. 3, pp. 329-341
Wan, Alan T.K. / Estimating the error variance after a pre-test for an inequality restriction on the coefficients. June 1996; In: Journal of Statistical Planning and Inference. Vol. 52, No. 2, pp. 197-213
Wan, Alan T. K. / On the bias and mean square error of the least square estimator in a regression model with two inequality constraints and multivariate t error terms. 1996; In: Communications in Statistics - Theory and Methods. Vol. 25, No. 9, pp. 2079-2091
Wan, Alan T.K.; Yang, Minxian / On the use of the f ratio in a mis-specified model with an interval restriction. April 1995; In: Journal of Statistical Computation and Simulation. Vol. 52, No. 2, pp. 151-161
Wan, Alan T.K. / THE OPTIMAL CRITICAL VALUE OF A PRE‐TEST FOR AN INEQUALITY RESTRICTION IN A MIS‐SPECIFIED REGRESSION MODEL. March 1995; In: Australian Journal of Statistics. Vol. 37, No. 1, pp. 73-81
Wan, Alan T.K. / Risk comparison of the inequality constrained least squares and other related estimators under balanced loss. November 1994; In: Economics Letters. Vol. 46, No. 3, pp. 203-210
Wan, Alan T.K. / THE SAMPLING PERFORMANCE OF INEQUALITY RESTRICTED AND PRE‐TEST ESTIMATORS IN A MIS‐SPECIFIED LINEAR MODEL. September 1994; In: Australian Journal of Statistics. Vol. 36, No. 3, pp. 313-325
Wan, Alan T.K. / The non-optimality of interval restricted and pre-test estimators under squared error loss. January 1994; In: Communications in Statistics - Theory and Methods. Vol. 23, No. 8, pp. 2231-2252
Chapters, Conference Papers, Creative and Literary Works
QIN, Huaizhen; WAN, Tze-Kin; ZOU, Guohua / Local sensitivity in the inequality restricted linear model. 2008; Recent advances in linear models and related areas. pp. 135-163
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