Nothing Special   »   [go: up one dir, main page]

create a website
Rate-optimal data-driven specification testing in regression models. (2001). Lavergne, Pascal ; Guerre, Emmanuel.
In: Econometrics.
RePEc:wpa:wuwpem:0107001.

Full description at Econpapers || Download paper

Cited: 1

Citations received by this document

Cites: 52

References cited by this document

Cocites: 50

Documents which have cited the same bibliography

Coauthors: 0

Authors who have wrote about the same topic

Citations

Citations received by this document

  1. Testing the martingale difference hypothesis using integrated regression functions. (2006). Velasco, Carlos ; Escanciano, Juan Carlos.
    In: Computational Statistics & Data Analysis.
    RePEc:eee:csdana:v:51:y:2006:i:4:p:2278-2294.

    Full description at Econpapers || Download paper

References

References cited by this document

  1. AERTS, M., G. CLAESKENS and J.D. HART (1999). Testing the fit of a parametric function. Journal of the American Statistical Association 94 869879.
    Paper not yet in RePEc: Add citation now
  2. AERTS, M., G. CLAESKENS and J.D. HART (2000). Testing lack of fit in multiple regression. Biometrika 87 (2) 4054242.
    Paper not yet in RePEc: Add citation now
  3. AKAIKE, H. (1973). Information theory and an extension of the maximum likelihood principle. Proceedings of the Second International Symposium on Information Theory , B.N. Petrov and F. Csaki eds., Akademiai Kiodo, Budapest, pp. 267281.
    Paper not yet in RePEc: Add citation now
  4. ANDREWS (1997). A conditional Kolmogorov test. Econometrica 65 (5) 10971128.

  5. Annals of Statistics 14 12611350. YANAGIMOTO, T. and M. YANAGIMOTO (1987). The use of marginal likelihood for a diagnostic test for the goodness of fit of the simple linear regression model. Technometrics 29 95101.
    Paper not yet in RePEc: Add citation now
  6. ARCONES, M.A. and E. GINE (1993). Limit theorems for U-processes. Annals of Probability 21 14941542.
    Paper not yet in RePEc: Add citation now
  7. BARAUD, Y. (1997). Model selection for regression on random design. Ecole Normale Sup´ erieure, Paris. Available at www.dma.ens.fr/ ~ baraud/.
    Paper not yet in RePEc: Add citation now
  8. BARAUD, Y., S. HUET and B. LAURENT (1999). Adaptive tests of linear hypotheses by model selection. Ecole Normale Sup´ erieure, Paris. Available at www.dma.ens.fr/ ~ baraud/.
    Paper not yet in RePEc: Add citation now
  9. BARRY, D. and J.A. HARTIGAN (1990). An omnibus test for departures from constant mean. Annals of Statistics 18 13401357.
    Paper not yet in RePEc: Add citation now
  10. BIERENS, H.J. (1982). Consistent model specification tests. Journal of Econometrics 20 105134.

  11. BIERENS, H.J. and W. PLOBERGER (1997). Asymptotic theory of integrated conditional moment tests. Econo- metrica 65 (5) 11291151.

  12. BIRGE, L. and P. MASSART (1993). Rates of convergence for minimum contrast estimators. Probability Theory and Related Fields 97 113-150.
    Paper not yet in RePEc: Add citation now
  13. CHEN, J.C. (1994). Testing goodness-of-fit of polynomial models via spline smoothing techniques. Statistics and Probability Letters 19 6576.

  14. CHOW, Y.S. and H. TEICHER (1988). Probability Theory: Independence, Interchangeability, Martingales. Springer- Verlag, New-York.
    Paper not yet in RePEc: Add citation now
  15. CLEVELAND, W.S. and S.J. DEVLIN (1988). Locally weighted regression: an approach to regression analysis by local fitting. Journal of the American Statistical Association 83 (403) 596610.
    Paper not yet in RePEc: Add citation now
  16. DAVIS, P.J (1975). Interpolation and approximation. Dover.
    Paper not yet in RePEc: Add citation now
  17. DETTE, H. (1999). A consistent test for the functional form of a regression based on a difference of variance estimators. Annals of Statistics 27(3) 10121040.
    Paper not yet in RePEc: Add citation now
  18. Econometrica 52 681700. GOZALO, P.L. (1997). Nonparametric bootstrap anamysis with applicatins to demographic effects in demand functions. Journal of Econometrics 81 357393.
    Paper not yet in RePEc: Add citation now
  19. ELLISON, G. and S. FISHER ELLISON (2000). A simple framework for nonparametric specification testing.

  20. EUBANK, R.L. and C.H. SPIEGELMAN (1990). Testing the goodness of fit of a linear model via nonparametric regression techniques. Journal of the American Statistical Association 85 (410) 387392.
    Paper not yet in RePEc: Add citation now
  21. EUBANK, R.L. and J.D. HART (1992). Testing goodness-of-fit in regression via order selection criteria. Annals of Statistics 20 (3) 14121425.
    Paper not yet in RePEc: Add citation now
  22. EUBANK, R.L. and J.D. HART (1993). Commonality of cusum, von Neumann and smoothing-based goodness- of-fit tests. Biometrika 80 8998.
    Paper not yet in RePEc: Add citation now
  23. FAN, J. and I. GIJBELS (1996). Local Polynomial Modelling and its Applications. Chapman et Hall, London.
    Paper not yet in RePEc: Add citation now
  24. FAN, J. and L.S. HUANG (2000). Goodness-of-fit tests for parametric regression models. Journal of the American Statistical Association forthcoming.
    Paper not yet in RePEc: Add citation now
  25. GOURIEROUX, C., A. MONFORT and A. TROGNON (1984). Pseudo-maximum likelihood methods: theory.

  26. GUERRE, E. and O. LIEBERMAN (2000). -level adaptive testing in nonparametric regression via selection criteria. LSTA, Univ. Paris 6.
    Paper not yet in RePEc: Add citation now
  27. GUERRE, E. and P. LAVERGNE (1999). Optimal minimax rates for nonparametric specification testing in regres- sion models. LSTA, Univ. Paris 6. Available at www.toulouse.inra.fr/centre/esr/CV/lavergne/lavergnefr.html.

  28. GY ORFI, L., W. H ARDLE, P. SARDA and P. VIEU (1989). Nonparametric Curve Estimation From Time Series.
    Paper not yet in RePEc: Add citation now
  29. H ARDLE, W., G. KERKYACHARIAN, D. PICARD and A. TSYBAKOV (1998). Wavelets, Approximation and Statistical Applications. Lecture notes in Statistics, 129. Springer-Verlag, Berlin.
    Paper not yet in RePEc: Add citation now
  30. HART, J.D. (1997). Nonparametric Smoothing and Lack-of-Fit Tests. Springer Verlag, New-York.
    Paper not yet in RePEc: Add citation now
  31. HART, J.D. and T.E. WEHRLY (1992). Kernel regression when the boundary region is large, with an application to testing the adequacy of polynomial models. Journal of the American Statistical Association 87 10181024.
    Paper not yet in RePEc: Add citation now
  32. HONG, Y. and H. WHITE (1995). Consistent specification testing via non-parametric series regressions. Econo- metrica 63 11331160.

  33. HOROWITZ, J.L. and V.G. SPOKOINY (2001). An adaptive, rate-optimal test of a parametric model against a nonparametric alternative. Econometrica forthcoming.

  34. INGLOT, T., W.C.M. KALLENBERG and T. LEDWINA (1997). Data-driven smooth tests for composite hy- potheses. Annals of Statistics 25 (3) 12221250.
    Paper not yet in RePEc: Add citation now
  35. INGSTER, Y. I. (1993). Asymptotically minimax hypothesis testing for nonparametric alternatives. (Part I, II and III) Mathematical Methods of Statistics 2 85-114 171189 and 249268.
    Paper not yet in RePEc: Add citation now
  36. Journal of Econometrics 87 145165. LORENTZ, G.G. (1966). Approximation of functions. Holt, Rinehart, and Winston.
    Paper not yet in RePEc: Add citation now
  37. Journal of Econometrics 96 123. EUBANK, R.L. (1988). Spline Smoothing and Nonparametric Regression. Marcel Dekker, New-York.
    Paper not yet in RePEc: Add citation now
  38. Journal of the American Statistical Association 85 10391049. H ARDLE, W. (1990). Applied Nonparametric Regression. Cambridge University Press.
    Paper not yet in RePEc: Add citation now
  39. LAVERGNE, P. and Q.H. VUONG (1998). An integral estimator of residual variance and a measure of explanatory power of covariates in nonparametric regression. Journal of Nonparametric Statistics 9(4) 363380.
    Paper not yet in RePEc: Add citation now
  40. LEDWINA, T. (1994). Data-driven version of a Neymans smooth test of fit. Journal of the American Statistical Association 89 10001005.
    Paper not yet in RePEc: Add citation now
  41. LI, Q. and S. WANG (1998). A simple consistent bootstrap test for a parametric regression functional form.

  42. NEWEY, W.K. (1997). Convergence rates and asymptotic normality for series estimators. Journal of Econometrics 79 147168.

  43. RAMSEY, J.B. (1969). Tests for specification errors in classical linear least-squares regression analysis. Journal of the Royal Statistical Society, Series B 31, 350371.
    Paper not yet in RePEc: Add citation now
  44. RICE, J. (1984). Bandwidth choice for nonparametric regression. Annals of Statistics 12 12151230.
    Paper not yet in RePEc: Add citation now
  45. SCHWARZ, G. (1978). Estimating the dimension of a model. Annals of Statistics 6(2) 461464.
    Paper not yet in RePEc: Add citation now
  46. SILVERMAN B. W. (1985). Some aspects of the spline smoothing approach to non-parametric regression curve fitting. Journal of the Royal Statistical Society, Series B 47 (1) 152.
    Paper not yet in RePEc: Add citation now
  47. SPOKOINY, V.G. (1996). Adaptive hypothesis testing using wavelets. Annals of Statistics 24 (6) 24772498.
    Paper not yet in RePEc: Add citation now
  48. SPOKOINY, V.G. (1999). Data-driven testing the fit of linear models. Weierstrass Institute, Berlin. Available at www.wias.berlin.de/private/spokoiny.
    Paper not yet in RePEc: Add citation now
  49. Springer-Verlag, Berlin. HALL, P. and J.D. HART (1990). Bootstrap test for difference bewteen means in nonparametric regression.
    Paper not yet in RePEc: Add citation now
  50. STUTE, W. (1997). Nonparametric model checks for regression. Annals of Statistics 25 (2) 613641.
    Paper not yet in RePEc: Add citation now
  51. WU, C. F. J. (1986). Jacknife, Bootstrap and other Resampling Methods in Regression Analysis (with discussion).
    Paper not yet in RePEc: Add citation now
  52. ZHENG, X. (1996). A consistent test of functional form via nonparametric estimation techniques. Journal of Econometrics 75 263289.

Cocites

Documents in RePEc which have cited the same bibliography

  1. Model Adequacy Checks for Discrete Choice Dynamic Models. (2012). Velasco, Carlos ; Kheifets, Igor.
    In: Working Papers.
    RePEc:cfr:cefirw:w0170.

    Full description at Econpapers || Download paper

  2. Heterogeneidad en la fijación de precios en Colombia: análisis de sus determinantes a partir de modelos de conteo. (2011). Parra-Alvarez, Juan ; Misas, Martha ; López, Enrique ; Enrique Lopez E., ; Martha Misas A., ; Juan Carlos Parra A., .
    In: VNIVERSITAS ECONÓMICA.
    RePEc:col:000416:008301.

    Full description at Econpapers || Download paper

  3. Heterogeneidad en la fijación de precios en Colombia: Análisis de sus determinantes a partir de modelos de conteo. (2010). Parra-Alvarez, Juan ; Misas, Martha ; López, Enrique ; Enrique Lopez E., ; Martha Misas A., ; Juan Carlos Parra A., .
    In: Borradores de Economia.
    RePEc:bdr:borrec:628.

    Full description at Econpapers || Download paper

  4. Flexible estimation of wage distributions in the presence of covariates. (2009). Mora, Juan ; Febrer, Antonia.
    In: Computational Statistics & Data Analysis.
    RePEc:eee:csdana:v:53:y:2009:i:6:p:2189-2200.

    Full description at Econpapers || Download paper

  5. Bootstrap Tests of Stochastic Dominance with Asymptotic Similarity on the Boundary. (2008). Whang, Yoon-Jae ; LINTON, OLIVER ; Song, Kyungchul.
    In: PIER Working Paper Archive.
    RePEc:pen:papers:08-006.

    Full description at Econpapers || Download paper

  6. Comparing Open and Sealed Bid Auctions: Evidence from Timber Auctions. (2008). Seira, Enrique ; Levin, Jonathan ; Athey, Susan.
    In: NBER Working Papers.
    RePEc:nbr:nberwo:14590.

    Full description at Econpapers || Download paper

  7. The empirical assessment of multidimensional welfare, inequality and poverty: Sample weighted multivariate generalizations of the Kolmogorov–Smirnov two sample tests for stochastic dominance. (2008). Anderson, Gordon.
    In: The Journal of Economic Inequality.
    RePEc:kap:jecinq:v:6:y:2008:i:1:p:73-87.

    Full description at Econpapers || Download paper

  8. Bootstrap tests of stochastic dominance with asymptotic similarity on the boundary. (2008). Whang, Yoon-Jae ; LINTON, OLIVER ; Song, Kyungchul.
    In: CeMMAP working papers.
    RePEc:ifs:cemmap:08/08.

    Full description at Econpapers || Download paper

  9. Testing for discrete choice models. (2008). Zheng, XU.
    In: Economics Letters.
    RePEc:eee:ecolet:v:98:y:2008:i:2:p:176-184.

    Full description at Econpapers || Download paper

  10. Testing for Non-Nested Conditional Moment Restrictions Using Unconditional Empirical Likelihood. (2008). Whang, Yoon-Jae ; SEO, MYUNG HWAN ; Otsu, Taisuke.
    In: Cowles Foundation Discussion Papers.
    RePEc:cwl:cwldpp:1660.

    Full description at Econpapers || Download paper

  11. Bandwidth selection for nonparametric kernel testing. (2007). GAO, Jiti ; Gijbels, Irene.
    In: MPRA Paper.
    RePEc:pra:mprapa:11982.

    Full description at Econpapers || Download paper

  12. Testing Conditional Independence via Rosenblatt Transforms. (2007). Song, Kyungchul.
    In: PIER Working Paper Archive.
    RePEc:pen:papers:07-026.

    Full description at Econpapers || Download paper

  13. Asymptotically Optimal Tests for Single-Index Restrictions with a Focus on Average Partial Effects. (2007). Escanciano, Juan Carlos ; Song, Kyungchul.
    In: PIER Working Paper Archive.
    RePEc:pen:papers:07-005.

    Full description at Econpapers || Download paper

  14. A Simulation Based Specification Test for Diffusion Processes. (2006). Swanson, Norman ; Bhardwaj, Geetesh ; Corradi, Valentina.
    In: Departmental Working Papers.
    RePEc:rut:rutres:200614.

    Full description at Econpapers || Download paper

  15. How Sticky Is Sticky Enough? A Distributional and Impulse Response Analysis of New Keynesian DSGE Models. Extended Working Paper Version. (2006). Swanson, Norman ; Korenok, Oleg.
    In: Departmental Working Papers.
    RePEc:rut:rutres:200612.

    Full description at Econpapers || Download paper

  16. Nonparametric Econometrics: Theory and Practice. (2006). Racine, Jeffrey Scott ; Li, QI.
    In: Economics Books.
    RePEc:pup:pbooks:8355.

    Full description at Econpapers || Download paper

  17. CONSISTENT SPECIFICATION TEST FOR ORDERED DISCRETE CHOICE MODELS. (2006). Mora, Juan ; Moro-Egido, Ana.
    In: Working Papers. Serie AD.
    RePEc:ivi:wpasad:2006-17.

    Full description at Econpapers || Download paper

  18. Asymptotic properties for a class of partially identified models. (2006). Molinari, Francesca ; Beresteanu, Arie.
    In: CeMMAP working papers.
    RePEc:ifs:cemmap:10/06.

    Full description at Econpapers || Download paper

  19. Asymptotic Properties for a Class of Partially Identified Models. (2006). Molinari, Francesca ; Beresteanu, Arie.
    In: Working Papers.
    RePEc:ecl:corcae:06-07.

    Full description at Econpapers || Download paper

  20. Empirical Models of Auctions. (2006). Haile, Philip ; Athey, Susan.
    In: Levine's Bibliography.
    RePEc:cla:levrem:122247000000001045.

    Full description at Econpapers || Download paper

  21. WAGE DISTRIBUTION IN SPAIN, 1994-1999: AN APPLICATION OF A FLEXIBLE ESTIMATOR OF CONDITIONAL DISTRIBUTIONS. (2005). Mora, Juan.
    In: Working Papers. Serie EC.
    RePEc:ivi:wpasec:2005-04.

    Full description at Econpapers || Download paper

  22. Bootstrap specification tests for diffusion processes. (2005). Swanson, Norman ; Corradi, Valentina.
    In: Journal of Econometrics.
    RePEc:eee:econom:v:124:y:2005:i:1:p:117-148.

    Full description at Econpapers || Download paper

  23. Predective Density and Conditional Confidence Interval Accuracy Tests. (2004). Swanson, Norman ; Corradi, Valentina.
    In: Departmental Working Papers.
    RePEc:rut:rutres:200423.

    Full description at Econpapers || Download paper

  24. A test for the distributional comparison of simulated and historical data. (2004). Swanson, Norman ; Corradi, Valentina.
    In: Economics Letters.
    RePEc:eee:ecolet:v:85:y:2004:i:2:p:185-193.

    Full description at Econpapers || Download paper

  25. A Test of the Martingale Hypothesis. (2004). Whang, Yoon-Jae ; Park, Joon.
    In: Working Papers.
    RePEc:ecl:riceco:2004-11.

    Full description at Econpapers || Download paper

  26. Bootstrap Specification Tests for Diffusion Processes. (2003). Swanson, Norman ; Corradi, Valentina.
    In: Departmental Working Papers.
    RePEc:rut:rutres:200321.

    Full description at Econpapers || Download paper

  27. Evaluation of Dynamic Stochastic General Equilibrium Models Based on Distributional Comparison of Simulated and Historical Data. (2003). Swanson, Norman ; Corradi, Valentina.
    In: Departmental Working Papers.
    RePEc:rut:rutres:200320.

    Full description at Econpapers || Download paper

  28. A Test for Comparing Multiple Misspecified Conditional Distributions. (2003). Swanson, Norman ; Corradi, Valentina.
    In: Departmental Working Papers.
    RePEc:rut:rutres:200314.

    Full description at Econpapers || Download paper

  29. The Block Bootstrap for Parameter Estimation Error In Recursive Estimation Schemes, With Applications to Predictive Evaluation. (2003). Swanson, Norman ; Corradi, Valentina.
    In: Departmental Working Papers.
    RePEc:rut:rutres:200313.

    Full description at Econpapers || Download paper

  30. Bootstrap Conditional Distribution Tests In the Presence of Dynamic Misspecification. (2003). Swanson, Norman ; Corradi, Valentina.
    In: Departmental Working Papers.
    RePEc:rut:rutres:200311.

    Full description at Econpapers || Download paper

  31. Forecasting economic and financial time-series with non-linear models. (2003). Swanson, Norman ; Franses, Philip Hans ; Clements, Michael.
    In: Departmental Working Papers.
    RePEc:rut:rutres:200309.

    Full description at Econpapers || Download paper

  32. MOTIVES FOR MONEY-TRANSFERS WITHIN FAMILIES: THE ROLE OF TRANSFERS ON EDUCATION. (2003). Mora, Juan ; Moro-Egido, Ana.
    In: Working Papers. Serie AD.
    RePEc:ivi:wpasad:2003-37.

    Full description at Econpapers || Download paper

  33. Consistent specification tests for semiparametric/nonparametric models based on series estimation methods. (2003). Li, Qi ; hsiao, cheng ; Zinn, Joel .
    In: Journal of Econometrics.
    RePEc:eee:econom:v:112:y:2003:i:2:p:295-325.

    Full description at Econpapers || Download paper

  34. A CONSISTENT MODEL SPECIFICATION TEST BASED ON THE KERNEL SUM OF SQUARES OF RESIDUALS. (2002). Li, Qi ; Fan, Yanqin.
    In: Econometric Reviews.
    RePEc:taf:emetrv:v:21:y:2002:i:3:p:337-352.

    Full description at Econpapers || Download paper

  35. Consistent testing for stochastic dominance: a subsampling approach. (2002). Maasoumi, Esfandiar ; LINTON, OLIVER ; Wang, Yoon-Jae.
    In: CeMMAP working papers.
    RePEc:ifs:cemmap:03/02.

    Full description at Econpapers || Download paper

  36. Consistent Testing for Stochastic Dominance: A Subsampling Approach. (2002). Whang, Yoon-Jae ; Maasoumi, Esfandiar ; LINTON, OLIVER.
    In: Cowles Foundation Discussion Papers.
    RePEc:cwl:cwldpp:1356.

    Full description at Econpapers || Download paper

  37. Rate-optimal data-driven specification testing in regression models. (2001). Lavergne, Pascal ; Guerre, Emmanuel.
    In: Econometrics.
    RePEc:wpa:wuwpem:0107001.

    Full description at Econpapers || Download paper

  38. Consistent specification testing for conditional moment restrictions. (2001). Whang, Yoon-Jae.
    In: Economics Letters.
    RePEc:eee:ecolet:v:71:y:2001:i:3:p:299-306.

    Full description at Econpapers || Download paper

  39. Size Corrected Power for Bootstrap Tests. (2001). Lobato, Ignacio ; dominguez, manuel.
    In: Working Papers.
    RePEc:cie:wpaper:0102.

    Full description at Econpapers || Download paper

  40. A Consistent Test for the Martingale Difference Hypothesis. (2001). Lobato, Ignacio ; dominguez, manuel.
    In: Working Papers.
    RePEc:cie:wpaper:0101.

    Full description at Econpapers || Download paper

  41. A Consistent Bootstrap Test for Conditional Density Functions with Time-Dependent Data. (2001). Tkacz, Greg ; Li, Fuchun.
    In: Staff Working Papers.
    RePEc:bca:bocawp:01-21.

    Full description at Econpapers || Download paper

  42. An Adaptive, Rate-Optimal Test of Linearity for Median Regression Models. (2000). Spokoiny, Vladimir G..
    In: Working Papers.
    RePEc:uia:iowaec:00-04.

    Full description at Econpapers || Download paper

  43. Bootstrap Tests for the Effect of a Treatment on the Distribution of an Outcome Variable. (2000). Abadie, Alberto.
    In: NBER Technical Working Papers.
    RePEc:nbr:nberte:0261.

    Full description at Econpapers || Download paper

  44. Consistent bootstrap tests of parametric regression functions. (2000). Whang, Yoon-Jae.
    In: Journal of Econometrics.
    RePEc:eee:econom:v:98:y:2000:i:1:p:27-46.

    Full description at Econpapers || Download paper

  45. Learning and Communication in Sender-Receiver Games: An Econometric Investigation. (2000). NEUMANN, George R. ; Savin, Nathan E..
    In: Econometric Society World Congress 2000 Contributed Papers.
    RePEc:ecm:wc2000:1852.

    Full description at Econpapers || Download paper

  46. A Consistent Test for the Martingale Difference Assumption. (2000). Lobato, Ignacio.
    In: Econometric Society World Congress 2000 Contributed Papers.
    RePEc:ecm:wc2000:0278.

    Full description at Econpapers || Download paper

  47. An Adaptive, Rate-Optimal Test of a Parametric Model Against a Nonparametric Alternative. (1999). Spokoiny, Vladimir G..
    In: Working Papers.
    RePEc:uia:iowaec:99-02.

    Full description at Econpapers || Download paper

  48. Consistent model specification tests for time series econometric models. (1999). Li, Qi.
    In: Journal of Econometrics.
    RePEc:eee:econom:v:92:y:1999:i:1:p:101-147.

    Full description at Econpapers || Download paper

  49. Some Higher Order Theory for a Consistent Nonparametric Model Specification Test. (1997). LINTON, OLIVER ; Fan, Yanqin.
    In: Cowles Foundation Discussion Papers.
    RePEc:cwl:cwldpp:1148.

    Full description at Econpapers || Download paper

  50. Conditional Independence Restrictions: Testing and Estimation. (1996). LINTON, OLIVER ; Gozalo, Pedro.
    In: Cowles Foundation Discussion Papers.
    RePEc:cwl:cwldpp:1140.

    Full description at Econpapers || Download paper

Coauthors

Authors registered in RePEc who have wrote about the same topic

Report date: 2025-02-26 09:45:31 || Missing content? Let us know

CitEc is a RePEc service, providing citation data for Economics since 2001. Sponsored by INOMICS. Last updated October, 6 2023. Contact: CitEc Team.