+-------+ ----+ Title +------------------------------------------------------------
reset2: 2SLS-IV REgression Specification Error Tests (RESET)
+-------------------+ ----+ Table of Contents +------------------------------------------------
Syntax Description Model GMM Options Other Options Saved Results References
*** Examples
Author
+--------+ ----+ Syntax +-----------------------------------------------------------
reset2 depvar indepvars (endog = inst) [if] [in] , model(2sls, liml, gmm, melo, fuller, kclass) [ kc(#) kf(#) hetcov(type) noconstant noconexog ]
+-------------+ ----+ Description +------------------------------------------------------
reset2 computes 2SLS-IV 2SLS-IV REgression Specification Error Tests (RESET) for instrumental variables regression models, via 2sls, liml, melo, gmm, and kclass.
Ho: Model is Specified - Ha: Model is Misspecified - Ramsey RESETF Test - DeBenedictis-Giles Specification ResetL Test - DeBenedictis-Giles Specification ResetS Test - White Functional Form Test
+-------+ ----+ Model +------------------------------------------------------------
model description 2sls Two-Stage Least Squares (2SLS) liml Limited-Information Maximum Likelihood (LIML) melo Minimum Expected Loss (MELO) fuller Fuller k-Class LIML kclass Theil K-Class LIML gmm Generalized Method of Moments (GMM)
+-------------+ ----+ GMM Options +------------------------------------------------------
hetcov Options Description
hetcov(white) White Method hetcov(bart) Bartlett Method hetcov(dan) Daniell Method hetcov(nwest) Newey-West Method hetcov(parzen) Parzen Method hetcov(quad) Quadratic spectral Method hetcov(tent) Tent Method hetcov(trunc) Truncated Method hetcov(tukeym) Tukey-Hamming Method hetcov(tukeyn) Tukey-Hanning Method
+---------------+ ----+ Other Options +----------------------------------------------------
kf(#) Fuller k-Class LIML Value
kc(#) Theil k-Class LIML Value
noconstant Exclude Constant Term from RHS Equation only
noconexog Exclude Constant Term from all Equations (both RHS and Instrumental Equations). Results of using noconexog option are identical to Stata ivregress and ivreg2. The default of reset2 is including Constant Term in both RHS and Instrumental Equations
+---------------+ ----+ Saved Results +----------------------------------------------------
reset2 saves the following in e():
*** REgression Specification Error Tests (RESET) Tests: e(resetf1) Ramsey Specification ResetF1 Test e(resetf1p) Ramsey Specification ResetF1 Test P-Value e(resetf2) Ramsey Specification ResetF2 Test e(resetf2p) Ramsey Specification ResetF2 Test P-Value e(resetf3) Ramsey Specification ResetF3 Test e(resetf3p) Ramsey Specification ResetF3 Test P-Value
e(resetl1) DeBenedictis-Giles Specification ResetL1 Test e(resetl1p) DeBenedictis-Giles Specification ResetL1 Test P-Value e(resetl2) DeBenedictis-Giles Specification ResetL2 Test e(resetl2p) DeBenedictis-Giles Specification ResetL2 Test P-Value e(resetl3) DeBenedictis-Giles Specification ResetL3 Test e(resetl3p) DeBenedictis-Giles Specification ResetL3 Test P-Value
e(resets1) DeBenedictis-Giles Specification ResetS1 Test e(resets1p) DeBenedictis-Giles Specification ResetS1 Test P-Value e(resets2) DeBenedictis-Giles Specification ResetS2 Test e(resets2p) DeBenedictis-Giles Specification ResetS2 Test P-Value e(resets3) DeBenedictis-Giles Specification ResetS3 Test e(resets3p) DeBenedictis-Giles Specification ResetS3 Test P-Value
e(lmw) Functional Form White LM Test e(lmwp) Functional Form White LM Test P-Value
+------------+ ----+ References +-------------------------------------------------------
Damodar Gujarati (1995) "Basic Econometrics" 3rd Edition, McGraw Hill, New York, USA.
DeBenedictis, L. F. & Giles D. E. A. (1998) "Diagnostic Testing in Econometrics: Variable Addition, RESET and Fourier Approximations", In: A. Ullah & D. E. A. Giles (Eds.), Handbook of Applied Economic Statistics. Marcel Dekker, New York; 383-417.
Greene, William (1993) "Econometric Analysis", 2nd ed., Macmillan Publishing Company Inc., New York, USA; 616-618.
Greene, William (2007) "Econometric Analysis", 6th ed., Upper Saddle River, NJ: Prentice-Hall; 387-388.
Griffiths, W., R. Carter Hill & George Judge (1993) "Learning and Practicing Econometrics", John Wiley & Sons, Inc., New York, USA; 602-606.
Judge, Georege, R. Carter Hill, William . E. Griffiths, Helmut Lutkepohl, & Tsoung-Chao Lee (1988) "Introduction To The Theory And Practice Of Econometrics", 2nd ed., John Wiley & Sons, Inc., New York, USA.
Judge, Georege, W. E. Griffiths, R. Carter Hill, Helmut Lutkepohl, & Tsoung-Chao Lee(1985) "The Theory and Practice of Econometrics", 2nd ed., John Wiley & Sons, Inc., New York, USA; 615.
Kmenta, Jan (1986) "Elements of Econometrics", 2nd ed., Macmillan Publishing Company, Inc., New York, USA; 718.
Maddala, G. (1992) "Introduction to Econometrics", 2nd ed., Macmillan Publishing Company, New York, USA; 358-366.
Park, S. (1982) "Some Sampling Properties of Minimum Expected Loss (MELO) Estimators of Structural Coefficients", J. Econometrics, Vol. 18, No. 2, April,; 295-311.
Ramsey, J. B. (1969) "Tests for Specification Errors in Classical Linear Least-Squares Regression Analysis", Journal of the Royal Statistical Society, Series B 31; 350-371.
White, Halbert (1980) "A Heteroskedasticity-Consistent Covariance Matrix Estimator and a Direct Test for Heteroskedasticity", Econometrica, 48; 817-838.
William E. Griffiths, R. Carter Hill and George G. Judge (1993) "Learning and Practicing Econometrics", John Wiley & Sons, Inc., New York, USA.
Zellner, Arnold (1978) "Estimation of Functions of Population Means and Regression Coefficients Including Structural Coefficients: A Minimum Expected Loss (MELO) Approach", J. Econometrics, Vol. 8,; 127-158.
Zellner, Arnold & S. Park (1979) "Minimum Expected Loss (MELO) Estimators for Functions of Parameters and Structural Coefficients of Econometric Models", J. Am. Stat. Assoc., Vol. 74; 185-193.
+----------+ ----+ Examples +---------------------------------------------------------
clear all
sysuse reset2.dta , clear
db reset2
reset2 y1 x1 x2 (y2 = x1 x2 x3 x4) , model(2sls) reset2 y1 x1 x2 (y2 = x1 x2 x3 x4) , model(melo) reset2 y1 x1 x2 (y2 = x1 x2 x3 x4) , model(liml) reset2 y1 x1 x2 (y2 = x1 x2 x3 x4) , model(fuller) kf(0.5) reset2 y1 x1 x2 (y2 = x1 x2 x3 x4) , model(kclass) kc(0.5) reset2 y1 x1 x2 (y2 = x1 x2 x3 x4) , model(gmm) hetcov(white) reset2 y1 x1 x2 (y2 = x1 x2 x3 x4) , model(gmm) hetcov(bart) reset2 y1 x1 x2 (y2 = x1 x2 x3 x4) , model(gmm) hetcov(dan) reset2 y1 x1 x2 (y2 = x1 x2 x3 x4) , model(gmm) hetcov(nwest) reset2 y1 x1 x2 (y2 = x1 x2 x3 x4) , model(gmm) hetcov(parzen) reset2 y1 x1 x2 (y2 = x1 x2 x3 x4) , model(gmm) hetcov(quad) reset2 y1 x1 x2 (y2 = x1 x2 x3 x4) , model(gmm) hetcov(tent) reset2 y1 x1 x2 (y2 = x1 x2 x3 x4) , model(gmm) hetcov(trunc) reset2 y1 x1 x2 (y2 = x1 x2 x3 x4) , model(gmm) hetcov(tukeym) reset2 y1 x1 x2 (y2 = x1 x2 x3 x4) , model(gmm) hetcov(tukeyn) -------------------------------------------------------------------------------
. clear all . sysuse reset2.dta , clear . reset2 y1 x1 x2 (y2 = x1 x2 x3 x4) , model(2sls)
============================================================================== * Two Stage Least Squares (2SLS) ============================================================================== y1 = y2 + x1 + x2 ------------------------------------------------------------------------------ Sample Size = 17 Wald Test = 79.9520 | P-Value > Chi2(3) = 0.0000 F-Test = 26.6507 | P-Value > F(3 , 13) = 0.0000 (Buse 1973) R2 = 0.8592 | Raw Moments R2 = 0.9954 (Buse 1973) R2 Adj = 0.8267 | Raw Moments R2 Adj = 0.9944 Root MSE (Sigma) = 10.2244 | Log Likelihood Function = -61.3630 ------------------------------------------------------------------------------ - R2h= 0.8593 R2h Adj= 0.8268 F-Test = 26.46 P-Value > F(3 , 13) 0.0000 - R2v= 0.8765 R2v Adj= 0.8480 F-Test = 30.75 P-Value > F(3 , 13) 0.0000 ------------------------------------------------------------------------------ y1 | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- y2 | .237333 .2422811 0.98 0.345 -.2860835 .7607495 x1 | .2821278 .5433329 0.52 0.612 -.8916715 1.455927 x2 | -1.044795 .362648 -2.88 0.013 -1.828248 -.2613411 _cons | 145.8444 61.72083 2.36 0.034 12.50468 279.1842 ------------------------------------------------------------------------------ * Y = LHS Dependent Variable: 1 = y1 * Yi = RHS Endogenous Variables: 1 = y2 * Xi = RHS Included Exogenous Vars: 2 = x1 x2 * Xj = RHS Excluded Exogenous Vars: 2 = x3 x4 * Z = Overall Instrumental Vars: 4 = x1 x2 x3 x4
============================================================================== *** 2SLS-IV REgression Specification Error Tests (RESET) - Model= (2sls) ============================================================================== Ho: Model is Specified - Ha: Model is Misspecified ------------------------------------------------------------------------------ * Ramsey Specification ResetF Test - Ramsey RESETF1 Test: Y= X Yh2 = 1.032 P-Value > F(1, 12) 0.3297 - Ramsey RESETF2 Test: Y= X Yh2 Yh3 = 6.942 P-Value > F(2, 11) 0.0112 - Ramsey RESETF3 Test: Y= X Yh2 Yh3 Yh4 = 5.561 P-Value > F(3, 10) 0.0166 ------------------------------------------------------------------------------ * DeBenedictis-Giles Specification ResetL Test - Debenedictis-Giles ResetL1 Test = 4.952 P-Value > F(2, 11) 0.0293 - Debenedictis-Giles ResetL2 Test = 2.960 P-Value > F(4, 9) 0.0813 - Debenedictis-Giles ResetL3 Test = 1.714 P-Value > F(6, 7) 0.2482 ------------------------------------------------------------------------------ * DeBenedictis-Giles Specification ResetS Test - Debenedictis-Giles ResetS1 Test = 2.117 P-Value > F(2, 11) 0.1668 - Debenedictis-Giles ResetS2 Test = 0.438 P-Value > F(4, 9) 0.7786 - Debenedictis-Giles ResetS3 Test = 0.321 P-Value > F(6, 7) 0.9063 ------------------------------------------------------------------------------ - White Functional Form Test: E2= X X2 = 9.977 P-Value > Chi2(1) 0.0068 ------------------------------------------------------------------------------
+--------+ ----+ Author +-----------------------------------------------------------
Emad Abd Elmessih Shehata Assistant Professor Agricultural Research Center - Agricultural Economics Research Institute - Eg > ypt Email: emadstat@hotmail.com WebPage: http://emadstat.110mb.com/stata.htm WebPage at IDEAS: http://ideas.repec.org/f/psh494.html WebPage at EconPapers: http://econpapers.repec.org/RAS/psh494.htm
+-----------------+ ----+ reset2 Citation +--------------------------------------------------
Shehata, Emad Abd Elmessih (2012) RESET2: "2SLS-IV REgression Specification Error Tests (RESET)"
Online Help:
reset, reset2. (if installed).