12
H index
13
i10 index
804
Citations
Rutgers University-New Brunswick | 12 H index 13 i10 index 804 Citations RESEARCH PRODUCTION: 19 Articles 17 Papers RESEARCH ACTIVITY:
MORE DETAILS IN: ABOUT THIS REPORT:
|
Works with: Authors registered in RePEc who have co-authored more than one work in the last five years with Roger W. Klein. | Is cited by: | Cites to: |
Journals with more than one article published | # docs |
---|---|
Econometrica | 4 |
Journal of Econometrics | 3 |
Economics Letters | 2 |
Journal of Financial and Quantitative Analysis | 2 |
Journal of Financial Economics | 2 |
Working Papers Series with more than one paper published | # docs |
---|---|
IZA Discussion Papers / Institute of Labor Economics (IZA) | 7 |
Working Papers. Serie AD / Instituto Valenciano de Investigaciones Económicas, S.A. (Ivie) | 2 |
CeMMAP working papers / Centre for Microdata Methods and Practice, Institute for Fiscal Studies | 2 |
Year | Title of citing document |
---|---|
2022 | . Full description at Econpapers || Download paper |
2022 | Random Forest Estimation of the Ordered Choice Model. (2019). Lechner, Michael ; Okasa, Gabriel. In: Papers. RePEc:arx:papers:1907.02436. Full description at Econpapers || Download paper |
2022 | Can Volatility Solve the Na\ive Diversification Puzzle?. (2020). Zalla, Ryan ; Curran, Michael . In: Papers. RePEc:arx:papers:2005.03204. Full description at Econpapers || Download paper |
2021 | Nonstationary Portfolios: Diversification in the Spectral Domain. (2021). Stankovic, Ljubisa ; Mandic, Danilo P ; Scalzo, Bruno ; Arroyo, Alvaro. In: Papers. RePEc:arx:papers:2102.00477. Full description at Econpapers || Download paper |
2022 | Identification and Estimation of Average Partial Effects in Semiparametric Binary Response Panel Models. (2021). Poirier, Alexandre ; Shiu, Ji-Liang ; Liu, Laura. In: Papers. RePEc:arx:papers:2105.12891. Full description at Econpapers || Download paper |
2021 | The efficient frontiers of mean-variance portfolio rules under distribution misspecification. (2021). van Zyl, Terence ; Gebbie, Tim ; Paskaramoorthy, Andrew. In: Papers. RePEc:arx:papers:2106.10491. Full description at Econpapers || Download paper |
2023 | Partial Identification and Inference for the Conditional Distribution of Treatment Effects. (2021). Lee, Sungwon. In: Papers. RePEc:arx:papers:2108.00723. Full description at Econpapers || Download paper |
2022 | Policy Optimization Using Semiparametric Models for Dynamic Pricing. (2021). Yu, Mengxin ; Guo, Yongyi ; Fan, Jianqing. In: Papers. RePEc:arx:papers:2109.06368. Full description at Econpapers || Download paper |
2023 | Estimating High Dimensional Monotone Index Models by Iterative Convex Optimization1. (2021). Tamer, Elie ; Lan, Xiaoying ; Khan, Shakeeb. In: Papers. RePEc:arx:papers:2110.04388. Full description at Econpapers || Download paper |
2022 | Volatility Sensitive Bayesian Estimation of Portfolio VaR and CVaR. (2022). Thors, Erik ; Niklasson, Vilhelm ; Bodnar, Taras. In: Papers. RePEc:arx:papers:2205.01444. Full description at Econpapers || Download paper |
2023 | Multivariate ordered discrete response models. (2022). Matcham, William ; Komarova, Tatiana. In: Papers. RePEc:arx:papers:2205.05779. Full description at Econpapers || Download paper |
2022 | Semiparametric Single-Index Estimation for Average Treatment Effects. (2022). Oka, Tatsushi ; Gao, Jiti ; Huang, Difang. In: Papers. RePEc:arx:papers:2206.08503. Full description at Econpapers || Download paper |
2022 | Isotonic propensity score matching. (2022). Otsu, Taisuke ; Xu, Mengshan. In: Papers. RePEc:arx:papers:2207.08868. Full description at Econpapers || Download paper |
2022 | Estimation of growth in fund models. (2022). Ruf, Johannes ; Koo, Hyeng Keun ; Kardaras, Constantinos. In: Papers. RePEc:arx:papers:2208.02573. Full description at Econpapers || Download paper |
2022 | A Bootstrap Specification Test for Semiparametric Models with Generated Regressors. (2022). Lapenta, Elia. In: Papers. RePEc:arx:papers:2212.11112. Full description at Econpapers || Download paper |
2023 | On semiparametric estimation of the intercept of the sample selection model: a kernel approach. (2023). Pan, Zhewen. In: Papers. RePEc:arx:papers:2302.05089. Full description at Econpapers || Download paper |
2023 | Dont (fully) exclude me, its not necessary! Identification with semi-IVs. (2023). Bruneel-Zupanc, Christophe. In: Papers. RePEc:arx:papers:2303.12667. Full description at Econpapers || Download paper |
2023 | . Full description at Econpapers || Download paper |
2021 | Choosing the Level of Significance: A Decision?theoretic Approach. (2021). Kim, Jae ; Choi, IN. In: Abacus. RePEc:bla:abacus:v:57:y:2021:i:1:p:27-71. Full description at Econpapers || Download paper |
2021 | The impact of index?insured loans on credit market participation and risk?taking. (2021). Flatnes, Jon Einar ; Gallenstein, Richard A ; Mishra, Khushbu ; Sam, Abdoul G ; Dougherty, John P. In: Agricultural Economics. RePEc:bla:agecon:v:52:y:2021:i:1:p:141-156. Full description at Econpapers || Download paper |
2021 | Accounting information, disclosure, and expected utility: Do investors really abhor uncertainty?. (2021). Johnstone, D J. In: Journal of Business Finance & Accounting. RePEc:bla:jbfnac:v:48:y:2021:i:1-2:p:3-35. Full description at Econpapers || Download paper |
2021 | Risk-taking and uncertainty: do contingent convertible (CoCo) bonds increase the risk appetite of banks?. (2021). van Wijnbergen, Sweder ; Neamu, Ioana ; Fatouh, Mahmoud. In: Bank of England working papers. RePEc:boe:boeewp:0938. Full description at Econpapers || Download paper |
2022 | Isotonic propensity score matching. (2022). Xu, Meghan ; Otsu, Taisuke. In: STICERD - Econometrics Paper Series. RePEc:cep:stiecm:623. Full description at Econpapers || Download paper |
2021 | Nonparametric Welfare Analysis for Discrete Choice: Levels and Differences of Individual and Social Welfare. (2021). Capéau, Bart ; Maes, Sebastiaan ; de Sadeleer, Liebrecht ; Capeau, Bart. In: CESifo Working Paper Series. RePEc:ces:ceswps:_9071. Full description at Econpapers || Download paper |
2022 | Bayesian portfolio selection using VaR and CVaR. (2022). Thorsen, Erik ; Niklasson, Vilhelm ; Lindholm, Mathias ; Bodnar, Taras. In: Applied Mathematics and Computation. RePEc:eee:apmaco:v:427:y:2022:i:c:s0096300322002041. Full description at Econpapers || Download paper |
2021 | Poverty exposure and cognitive abilities of children in rural China: Causation and the roles of family investments. (2021). Luo, Liang ; Yang, Haoran ; Li, Yunsen. In: Children and Youth Services Review. RePEc:eee:cysrev:v:121:y:2021:i:c:s0190740920321691. Full description at Econpapers || Download paper |
2022 | Identification and estimation of a heteroskedastic censored regression model with random coefficient dummy endogenous regressors. (2022). Zhang, Zhengyu ; Wang, Lei ; Guo, Jing. In: Economic Modelling. RePEc:eee:ecmode:v:110:y:2022:i:c:s0264999322000451. Full description at Econpapers || Download paper |
2021 | Robust conditional expectation reward–risk performance measures. (2021). Kouaissah, Noureddine. In: Economics Letters. RePEc:eee:ecolet:v:202:y:2021:i:c:s016517652100104x. Full description at Econpapers || Download paper |
2021 | Computing semiparametric efficiency bounds in discrete choice models with strategic-interactions and rational expectations. (2021). Aradillas-Lopez, Andres. In: Journal of Econometrics. RePEc:eee:econom:v:221:y:2021:i:1:p:25-42. Full description at Econpapers || Download paper |
2021 | Semiparametric estimation of dynamic discrete choice models. (2021). Xu, Haiqing ; Shum, Matthew ; Buchholz, Nicholas. In: Journal of Econometrics. RePEc:eee:econom:v:223:y:2021:i:2:p:312-327. Full description at Econpapers || Download paper |
2022 | Sample selection models with monotone control functions. (2022). Yu, Zhengfei ; Liu, Ruixuan. In: Journal of Econometrics. RePEc:eee:econom:v:226:y:2022:i:2:p:321-342. Full description at Econpapers || Download paper |
2021 | Nonparametric Instrumental Variable Estimation of Binary Response Models with Continuous Endogenous Regressors. (2021). Centorrino, Samuele ; FLORENS, Jean-Pierre. In: Econometrics and Statistics. RePEc:eee:ecosta:v:17:y:2021:i:c:p:35-63. Full description at Econpapers || Download paper |
2021 | The landscape of econometric discrete choice modelling research. (2021). , Michiel ; Haghani, Milad ; Hensher, David A. In: Journal of choice modelling. RePEc:eee:eejocm:v:40:y:2021:i:c:s1755534521000361. Full description at Econpapers || Download paper |
2021 | Horses for courses: Mean-variance for asset allocation and 1/N for stock selection. (2021). Sutcliffe, Charles ; Ye, Xiaoxia ; Platanakis, Emmanouil. In: European Journal of Operational Research. RePEc:eee:ejores:v:288:y:2021:i:1:p:302-317. Full description at Econpapers || Download paper |
2022 | Do we need higher-order comoments to enhance mean-variance portfolios? Evidence from a simplified jump process. (2022). Simaan, Yusif ; Khashanah, Khaldoun. In: International Review of Financial Analysis. RePEc:eee:finana:v:81:y:2022:i:c:s1057521922000412. Full description at Econpapers || Download paper |
2021 | Optimal portfolio selection using a simple double-shrinkage selection rule. (2021). Park, Sung Y. ; Joo, Young C. In: Finance Research Letters. RePEc:eee:finlet:v:43:y:2021:i:c:s1544612321001008. Full description at Econpapers || Download paper |
2021 | Exporting and pollution abatement expenditure: Evidence from firm-level data. (2021). Yasar, Mahmut ; Roy, Jayjit ; Banerjee, Soumendra Nath. In: Journal of Environmental Economics and Management. RePEc:eee:jeeman:v:105:y:2021:i:c:s0095069620301261. Full description at Econpapers || Download paper |
2022 | Executive stock options and systemic risk. (2022). Zhou, Frank S ; Nicoletti, Allison ; Armstrong, Christopher. In: Journal of Financial Economics. RePEc:eee:jfinec:v:146:y:2022:i:1:p:256-276. Full description at Econpapers || Download paper |
2022 | Exact solution for the portfolio diversification problem based on maximizing the risk adjusted return. (2022). Hatemi-J, Abdulnasser ; El-Khatib, Youssef ; Hajji, Mohamed Ali. In: Research in International Business and Finance. RePEc:eee:riibaf:v:59:y:2022:i:c:s0275531921001690. Full description at Econpapers || Download paper |
2023 | Empirical likelihood inference for monotone index model. (2023). Xu, Mengshan ; Takahata, Keisuke ; Otsu, Taisuke. In: LSE Research Online Documents on Economics. RePEc:ehl:lserod:118123. Full description at Econpapers || Download paper |
2021 | Sample Selection Models Without Exclusion Restrictions: Parameter Heterogeneity and Partial Identification. (2021). Hu, Luojia ; Honore, Bo E. In: Working Paper Series. RePEc:fip:fedhwp:95177. Full description at Econpapers || Download paper |
2021 | Semiparametric Estimation of a Corporate Bond Rating Model. (2021). Jiang, Yixiao. In: Econometrics. RePEc:gam:jecnmx:v:9:y:2021:i:2:p:23-:d:564043. Full description at Econpapers || Download paper |
2021 | CEO Turnovers: Transparency of Announcements and the Outperformance Puzzle. (2021). Li, Hui ; Farah, Paul. In: IJFS. RePEc:gam:jijfss:v:9:y:2021:i:3:p:34-:d:582008. Full description at Econpapers || Download paper |
2022 | Estimation of optimal portfolio compositions for small sampleand singular covariance matrix. (2022). Nguyen, Hoang ; Mazur, Stepan ; Bodnar, Taras. In: Working Papers. RePEc:hhs:oruesi:2022_015. Full description at Econpapers || Download paper |
2021 | Beyond the Origin Dummy: Heterogeneity of Ethnicity and Human Capital Accumulation. (2021). Postepska, Agnieszka. In: IZA Discussion Papers. RePEc:iza:izadps:dp14019. Full description at Econpapers || Download paper |
2021 | Intercept Estimation in Nonlinear Selection Models. (2021). Gutknecht, Daniel ; Corradi, Valentina ; Arulampalam, Wiji. In: IZA Discussion Papers. RePEc:iza:izadps:dp14364. Full description at Econpapers || Download paper |
2021 | Examining Inferences from Neural Network Estimators of Binary Choice Processes: Marginal Effects, and Willingness-to-Pay. (2021). Bergtold, Jason ; Ramsey, Steven M. In: Computational Economics. RePEc:kap:compec:v:58:y:2021:i:4:d:10.1007_s10614-020-09998-w. Full description at Econpapers || Download paper |
2022 | Semiparametric Single-Index Estimation for Average Treatment Effects. (2022). Gao, Jiti ; Huang, Difang ; Oka, Tatsushi. In: Monash Econometrics and Business Statistics Working Papers. RePEc:msh:ebswps:2022-10. Full description at Econpapers || Download paper |
2021 | Does the pay period matter in estimating returns to schooling? Evidence from East Africa. (2021). Owens, Trudy ; Morrissey, Oliver ; Donath, Livini. In: Discussion Papers. RePEc:not:notcre:21/01. Full description at Econpapers || Download paper |
2021 | Portfolio Diversification Benefits between Financial Markets of the US and China: Empirical Evidence from two Alternative Methods. (2021). Hatemi-J, Abdulnasser ; Taha, Viyan. In: Economia Internazionale / International Economics. RePEc:ris:ecoint:0910. Full description at Econpapers || Download paper |
2021 | Women’s Participation in Higher Education in India: An Analysis Across Major States. (2021). KUNDU, AMIT ; Ghosh, Sanghita. In: Indian Journal of Human Development. RePEc:sae:inddev:v:15:y:2021:i:2:p:275-294. Full description at Econpapers || Download paper |
2021 | Climate change investment risk: optimal portfolio construction ahead of the transition to a lower-carbon economy. (2021). Fedele, Luciano Lilloy ; Chatzimichalakis, Fotis ; Biffis, Enrico ; Benedetti, Davide ; Simm, Ian. In: Annals of Operations Research. RePEc:spr:annopr:v:299:y:2021:i:1:d:10.1007_s10479-019-03458-x. Full description at Econpapers || Download paper |
2021 | Quantile– based portfolios: post– model– selection estimation with alternative specifications. (2021). Bonaccolto, Giovanni. In: Computational Management Science. RePEc:spr:comgts:v:18:y:2021:i:3:d:10.1007_s10287-021-00396-7. Full description at Econpapers || Download paper |
2021 | SNAP participation, diet quality, and obesity: robust evidence with estimation techniques without external instrumental variables. (2021). Chen, Susan ; Wang, LE. In: Empirical Economics. RePEc:spr:empeco:v:61:y:2021:i:3:d:10.1007_s00181-020-01902-7. Full description at Econpapers || Download paper |
2022 | Changing selection into full-time work and its effect on wage inequality in Germany. (2022). Lazzer, Jakob ; Fitzenberger, Bernd. In: Empirical Economics. RePEc:spr:empeco:v:62:y:2022:i:1:d:10.1007_s00181-021-02098-0. Full description at Econpapers || Download paper |
2022 | Evaluating the Effect of the Matching Grant Program for Refugees: An Observational Study Using Matching, Weighting, and the Mantel-Haenszel Test. (2022). Shin, Seonho. In: Journal of Labor Research. RePEc:spr:jlabre:v:43:y:2022:i:1:d:10.1007_s12122-021-09326-7. Full description at Econpapers || Download paper |
2022 | Risk-Taking, Competition and Uncertainty: Do Contingent Convertible (CoCo) Bonds Increase the Risk Appetite of Banks?. (2022). van Wijnbergen, Sweder ; Neamtu, Ioana ; Fatouh, Mahmoud. In: Tinbergen Institute Discussion Papers. RePEc:tin:wpaper:20220017. Full description at Econpapers || Download paper |
2021 | The Empirical Content of Binary Choice Models. (2021). Bhattacharya, Debopam. In: Econometrica. RePEc:wly:emetrp:v:89:y:2021:i:1:p:457-474. Full description at Econpapers || Download paper |
2022 | Locally Robust Semiparametric Estimation. (2022). Robins, James M ; Newey, Whitney K ; Ichimura, Hidehiko ; Escanciano, Juan Carlos ; Chernozhukov, Victor. In: Econometrica. RePEc:wly:emetrp:v:90:y:2022:i:4:p:1501-1535. Full description at Econpapers || Download paper |
2021 | Optimal and naive diversification in an emerging market: Evidence from Chinas A?shares market. (2021). Yan, JI. In: International Journal of Finance & Economics. RePEc:wly:ijfiec:v:26:y:2021:i:3:p:3740-3758. Full description at Econpapers || Download paper |
2021 | Inference on semiparametric multinomial response models. (2021). Tamer, Elie ; Ouyang, FU ; Khan, Shakeeb. In: Quantitative Economics. RePEc:wly:quante:v:12:y:2021:i:3:p:743-777. Full description at Econpapers || Download paper |
2022 | The influence function of semiparametric estimators. (2022). Newey, Whitney K ; Ichimura, Hidehiko. In: Quantitative Economics. RePEc:wly:quante:v:13:y:2022:i:1:p:29-61. Full description at Econpapers || Download paper |
Year | Title | Type | Cited |
---|---|---|---|
1973 | A Dynamic Theory of Comparative Advantage. In: American Economic Review. [Full Text][Citation analysis] | article | 2 |
2010 | BIAS CORRECTIONS IN TESTING AND ESTIMATING SEMIPARAMETRIC, SINGLE INDEX MODELS In: Econometric Theory. [Full Text][Citation analysis] | article | 9 |
1975 | Abstract–The Effect of Estimation Risk on Optimal Portfolio Choice under Uncertainty In: Journal of Financial and Quantitative Analysis. [Full Text][Citation analysis] | article | 0 |
1977 | Abstract: The Effect of Limited Information and Estimation Risk on Optimal Portfolio Diversification In: Journal of Financial and Quantitative Analysis. [Full Text][Citation analysis] | article | 28 |
1978 | Decisions with Estimation Uncertainty. In: Econometrica. [Full Text][Citation analysis] | article | 9 |
1984 | Model Selection When There Is Minimal Prior Information. In: Econometrica. [Full Text][Citation analysis] | article | 16 |
1993 | An Efficient Semiparametric Estimator for Binary Response Models. In: Econometrica. [Full Text][Citation analysis] | article | 334 |
1991 | An Efficient Semiparametric Estimator for Binary Response Models..(1991) In: Bell Communications - Economic Research Group. [Citation analysis] This paper has another version. Agregated cites: 334 | paper | |
2002 | Shift Restrictions and Semiparametric Estimation in Ordered Response Models In: Econometrica. [Citation analysis] | article | 29 |
1986 | Some results on an approximation to joint distributions of utility functions In: Economics Letters. [Full Text][Citation analysis] | article | 0 |
1979 | The information criterion in model selection In: Economics Letters. [Full Text][Citation analysis] | article | 0 |
2010 | Estimating a class of triangular simultaneous equations models without exclusion restrictions In: Journal of Econometrics. [Full Text][Citation analysis] | article | 23 |
2005 | Estimating a class of triangular simultaneous equations models without exclusion restrictions.(2005) In: CeMMAP working papers. [Full Text][Citation analysis] This paper has another version. Agregated cites: 23 | paper | |
2006 | Estimating a Class of Triangular Simultaneous Equations Models Without Exclusion Restrictions.(2006) In: IZA Discussion Papers. [Full Text][Citation analysis] This paper has another version. Agregated cites: 23 | paper | |
1997 | Estimating new product demand from biased survey data In: Journal of Econometrics. [Full Text][Citation analysis] | article | 12 |
1979 | Optimal instruments when the disturbances are small In: Journal of Econometrics. [Full Text][Citation analysis] | article | 0 |
1976 | The effect of estimation risk on optimal portfolio choice In: Journal of Financial Economics. [Full Text][Citation analysis] | article | 151 |
1977 | The effect of limited information and estimation risk on optimal portfolio diversification In: Journal of Financial Economics. [Full Text][Citation analysis] | article | 37 |
1991 | Specification Tests for Binery Choice Models Based on Index Quantiles. In: Bell Communications - Economic Research Group. [Citation analysis] | paper | 1 |
2011 | Semiparametric selection models with binary outcomes In: CeMMAP working papers. [Full Text][Citation analysis] | paper | 2 |
2011 | Semiparametric Selection Models with Binary Outcomes.(2011) In: IZA Discussion Papers. [Full Text][Citation analysis] This paper has another version. Agregated cites: 2 | paper | |
1988 | A Flexible Class of Discrete Choice Models In: Marketing Science. [Full Text][Citation analysis] | article | 8 |
2008 | A Parametric Control Function Approach to Estimating the Returns to Schooling in the Absence of Exclusion Restrictions: An Application to the NLSY In: Working Papers. Serie AD. [Full Text][Citation analysis] | paper | 26 |
2010 | A Parametric Control Function Approach to Estimating the Returns to Schooling in the Absence of Exclusion Restrictions: An Application to the NLSY.(2010) In: IZA Discussion Papers. [Full Text][Citation analysis] This paper has another version. Agregated cites: 26 | paper | |
2009 | Does increasing parents schooling raise the schooling of the next generation? Evidence based on conditional second moments In: Working Papers. Serie AD. [Full Text][Citation analysis] | paper | 19 |
2009 | Does Increasing Parents Schooling Raise the Schooling of the Next Generation? Evidence Based on Conditional Second Moments.(2009) In: IZA Discussion Papers. [Full Text][Citation analysis] This paper has another version. Agregated cites: 19 | paper | |
2006 | A Semiparametric Model for Binary Response and Continuous Outcomes Under Index Heteroscedasticity In: IZA Discussion Papers. [Full Text][Citation analysis] | paper | 42 |
2009 | A semiparametric model for binary response and continuous outcomes under index heteroscedasticity.(2009) In: Journal of Applied Econometrics. [Full Text][Citation analysis] This paper has another version. Agregated cites: 42 | article | |
2006 | Estimating the Return to Endogenous Schooling Decisions for Australian Workers via Conditional Second Moments In: IZA Discussion Papers. [Full Text][Citation analysis] | paper | 3 |
2007 | Subjective Health Assessments and Active Labor Market Participation of Older Men: Evidence from a Semiparametric Binary Choice Model with Nonadditive Correlated Individual-Specific Effects In: IZA Discussion Papers. [Full Text][Citation analysis] | paper | 24 |
2008 | Subjective Health Assessments and Active Labor Market Participation of Older Men: Evidence from a Semiparametric Binary Choice Model with Nonadditive Correlated Individualspecific Effects.(2008) In: MEA discussion paper series. [Full Text][Citation analysis] This paper has another version. Agregated cites: 24 | paper | |
2011 | Subjective Health Assessments and Active Labor Market Participation of Older Men: Evidence from a Semiparametric Binary Choice Model with Nonadditive Correlated Individual-specific Effects.(2011) In: The Review of Economics and Statistics. [Full Text][Citation analysis] This paper has another version. Agregated cites: 24 | article | |
1987 | Factors Affecting the Output and Quit Propensities of Production Workers In: NBER Working Papers. [Full Text][Citation analysis] | paper | 1 |
1998 | AN EXPERIMENTAL TEST FOR STABILITY OF THE PROBABILITY TRANSFORMATION FUNCTION IN RANK-DEPENDENT EXPECTED UTILITY THEORY In: Departmental Working Papers. [Citation analysis] | paper | 0 |
1998 | ORDER-DEPENDENT PRESENT VALUE: THEORY AND AN EXPERIMENTAL TEST In: Departmental Working Papers. [Citation analysis] | paper | 0 |
2009 | Estimating the Return to Endogenous Schooling Decisions via Conditional Second Moments In: Journal of Human Resources. [Full Text][Citation analysis] | article | 28 |
CitEc is a RePEc service, providing citation data for Economics since 2001. Sponsored by INOMICS. Last updated April, 29 2023. Contact: CitEc Team