Welcome to SHAZAM - Version 10.0 - APR 2007 SYSTEM=WIN-XP PAR= 11000
CURRENT WORKING DIRECTORY IS: C:\Econ399F09
|_READ (c:\Econ399F09\chowurates.txt) YEAR GROUP UR BR ER WTI/ skiplines=1
UNIT 88 IS NOW ASSIGNED TO: c:\Econ399F09\chowurates.txt
...SAMPLERANGE IS NOW SET TO: 1 99
|_* we will look at autocrrelation and dynamic models for
|_* alberta - overall unemployment (observations 34 to 66)
|_* first we'll check the summary stats for alberta
|_smpl 34 66
|_STAT / ALL
NAME N MEAN ST. DEV VARIANCE MINIMUM MAXIMUM
YEAR 33 1992.0 9.6695 93.500 1976.0 2008.0
GROUP 33 2.0000 0.0000 0.0000 2.0000 2.0000
UR 33 6.4727 2.4544 6.0239 3.4000 11.300
BR 33 7.6212 3.8640 14.930 2.5000 17.900
ER 33 1.2742 0.14805 0.21920E-01 0.98600 1.5700
WTI 33 29.649 19.016 361.62 12.230 100.06
|_* check for functional form (before checking for autocorrelation)
|_* alberta
|_?ols ur br er wti
|_diagnos / reset
RAMSEY RESET SPECIFICATION TESTS USING POWERS OF YHAT
RESET(2)= 0.70175 - F WITH DF1= 1 AND DF2= 28 P-VALUE= 0.409
RESET(3)= 0.37245 - F WITH DF1= 2 AND DF2= 27 P-VALUE= 0.693
RESET(4)= 0.24042 - F WITH DF1= 3 AND DF2= 26 P-VALUE= 0.867
|_* next we'll do dw and bg tests
|_ols ur br er wti / dwpvalue resid=ehat
DURBIN-WATSON STATISTIC = 0.35981
DURBIN-WATSON POSITIVE AUTOCORRELATION TEST P-VALUE = 0.000000
NEGATIVE AUTOCORRELATION TEST P-VALUE = 1.000000
R-SQUARE = 0.2345 R-SQUARE ADJUSTED = 0.1554
SUM OF SQUARED ERRORS-SSE= 147.55
ANALYSIS OF VARIANCE - FROM MEAN
SS DF MS F
REGRESSION 45.211 3. 15.070 2.962
ERROR 147.55 29. 5.0881 P-VALUE
TOTAL 192.77 32. 6.0239 0.049
VARIABLE ESTIMATED STANDARD T-RATIO PARTIAL STANDARDIZED ELASTICITY
NAME COEFFICIENT ERROR 29 DF P-VALUE CORR. COEFFICIENT AT MEANS
BR 0.13409 0.1241 1.081 0.289 0.197 0.2111 0.1579
ER 3.3325 3.316 1.005 0.323 0.183 0.2010 0.6560
WTI -0.41256E-01 0.2486E-01 -1.660 0.108-0.295 -0.3197 -0.1890
CONSTANT 2.4278 5.209 0.4661 0.645 0.086 0.0000 0.3751
|_genr lagehat=lag(ehat)
..NOTE.LAG VALUE IN UNDEFINED OBSERVATIONS SET TO ZERO
|_* bg test option 1 --- use 0 for lagehat in 1st observations
|_smpl 34 34
|_genr lagehat=0
|_smpl 34 66
|_?ols ehat lagehat br er wti
|_gen1 bg1=$n*$r2
|_*option 2 --- drop the 1st observation
|_smpl 35 66
|_?ols ehat lagehat br er wti
|_gen1 bg2=$n*$r2
|_print bg1 bg2
BG1 21.91203 BG2 22.22092
|_* since our dw and bg tests indicate problems
|_* with auto we re-estimate the model
|_* and see if this fixes things
|_smpl 34 66
|_auto ur br er wti / rstat resid=ehat2
DEPENDENT VARIABLE = UR
..NOTE..R-SQUARE,ANOVA,RESIDUALS DONE ON ORIGINAL VARS
LEAST SQUARES ESTIMATION 33 OBSERVATIONS
BY COCHRANE-ORCUTT TYPE PROCEDURE WITH CONVERGENCE = 0.00100
ITERATION RHO LOG L.F. SSE
1 0.00000 -71.5369 147.55
2 0.80149 -46.5483 31.456
3 0.93059 -44.1539 26.409
4 0.95307 -44.2218 26.215
5 0.95711 -44.2602 26.206
6 0.95789 -44.2687 26.205
LOG L.F. = -44.2687 AT RHO = 0.95789
ASYMPTOTIC ASYMPTOTIC ASYMPTOTIC
ESTIMATE VARIANCE ST.ERROR T-RATIO
RHO 0.95789 0.00250 0.04999 19.16294
R-SQUARE = 0.8641 R-SQUARE ADJUSTED = 0.8500
SUM OF SQUARED ERRORS-SSE= 26.205
VARIABLE ESTIMATED STANDARD T-RATIO PARTIAL STANDARDIZED ELASTICITY
NAME COEFFICIENT ERROR 29 DF P-VALUE CORR. COEFFICIENT AT MEANS
BR -0.29539 0.8265E-01 -3.574 0.001-0.553 -0.4650 -0.3478
ER 1.7985 2.879 0.6246 0.537 0.115 0.1085 0.3540
WTI -0.17551E-01 0.2201E-01 -0.7976 0.432-0.147 -0.1360 -0.0804
CONSTANT 5.6677 4.571 1.240 0.225 0.224 0.0000 0.8756
DURBIN-WATSON = 0.9161 VON NEUMANN RATIO = 0.9448 RHO = 0.53563
|_genr lagehat2=lag(ehat2)
..NOTE.LAG VALUE IN UNDEFINED OBSERVATIONS SET TO ZERO
|_* bg test option 1 --- use 0 for lagehat in 1st observations
|_smpl 34 34
|_genr lagehat2=0
|_smpl 34 66
|_?ols ehat2 lagehat2 br er wti
|_gen1 bg1=$n*$r2
..NOTE..CURRENT VALUE OF $N = 33.000
..NOTE..CURRENT VALUE OF $R2 = 0.42196
|_*option 2 --- drop the 1st observation
|_smpl 35 66
|_?ols ehat2 lagehat2 br er wti
|_gen1 bg2=$n*$r2
..NOTE..CURRENT VALUE OF $N = 32.000
..NOTE..CURRENT VALUE OF $R2 = 0.42840
|_print bg1 bg2
BG1 13.92462 BG2 13.70892
|_* try dynamic models
|_* generate lags of our variables
|_genr urlag=lag(ur)
|_genr wtilag=lag(wti)
|_genr brlag=lag(br)
|_genr erlag=lag(er)
|_smpl 35 66
|_* model with a lagged dependent variable (can't use dw test)
|_ols ur urlag br er wti / resid=ehat3
R-SQUARE = 0.8059 R-SQUARE ADJUSTED = 0.7772
SUM OF SQUARED ERRORS-SSE= 36.090
ANALYSIS OF VARIANCE - FROM MEAN
SS DF MS F
REGRESSION 149.85 4. 37.462 28.027
ERROR 36.090 27. 1.3367 P-VALUE
TOTAL 185.94 31. 5.9981 0.000
VARIABLE ESTIMATED STANDARD T-RATIO PARTIAL STANDARDIZED ELASTICITY
NAME COEFFICIENT ERROR 27 DF P-VALUE CORR. COEFFICIENT AT MEANS
URLAG 0.87001 0.9940E-01 8.753 0.000 0.860 0.8661 0.8713
BR 0.68410E-01 0.6553E-01 1.044 0.306 0.197 0.1093 0.0790
ER -0.52568 1.949 -0.2697 0.789-0.052 -0.0303 -0.1029
WTI -0.41128E-02 0.1500E-01 -0.2742 0.786-0.053 -0.0320 -0.0189
CONSTANT 1.1246 3.128 0.3595 0.722 0.069 0.0000 0.1716
|_genr lagehat3=lag(ehat3)
..NOTE.LAG VALUE IN UNDEFINED OBSERVATIONS SET TO ZERO
|_* bg test option 1 --- use 0 for lagehat in 1st observations
|_smpl 35 35
|_genr lagehat3=0
|_smpl 35 66
|_?ols ehat3 lagehat3 urlag br er wti
|_gen1 bg1=$n*$r2
|_*option 2 --- drop the 1st observation
|_smpl 36 66
|_?ols ehat3 lagehat3 urlag br er wti
|_gen1 bg2=$n*$r2
|_print bg1 bg2
BG1 7.517235 BG2 7.395659
|_* model with lagged X's (can use dw test)
|_smpl 35 66
|_ols ur br brlag er erlag wti wtilag / dwpvalue
DURBIN-WATSON STATISTIC = 0.78447
DURBIN-WATSON POSITIVE AUTOCORRELATION TEST P-VALUE = 0.000002
NEGATIVE AUTOCORRELATION TEST P-VALUE = 0.999998
R-SQUARE = 0.4880 R-SQUARE ADJUSTED = 0.3651
SUM OF SQUARED ERRORS-SSE= 95.208
ANALYSIS OF VARIANCE - FROM MEAN
SS DF MS F
REGRESSION 90.731 6. 15.122 3.971
ERROR 95.208 25. 3.8083 P-VALUE
TOTAL 185.94 31. 5.9981 0.006
VARIABLE ESTIMATED STANDARD T-RATIO PARTIAL STANDARDIZED ELASTICITY
NAME COEFFICIENT ERROR 25 DF P-VALUE CORR. COEFFICIENT AT MEANS
BR -0.29282 0.1783 -1.642 0.113-0.312 -0.4680 -0.3382
BRLAG 0.45920 0.1859 2.470 0.021 0.443 0.7204 0.5437
ER -0.60956 6.804 -0.8959E-01 0.929-0.018 -0.0351 -0.1194
ERLAG 1.6799 6.128 0.2741 0.786 0.055 0.0999 0.3283
WTI -0.13134 0.6170E-01 -2.129 0.043-0.392 -1.0220 -0.6052
WTILAG 0.11197 0.7315E-01 1.531 0.138 0.293 0.6600 0.4690
CONSTANT 4.7293 5.356 0.8830 0.386 0.174 0.0000 0.7217
|_* model with a lagged dependent variable and lagged x's (can't use dw test)
|_ols ur urlag br brlag er erlag wti wtilag / resid=ehat4
R-SQUARE = 0.9332 R-SQUARE ADJUSTED = 0.9137
SUM OF SQUARED ERRORS-SSE= 12.423
ANALYSIS OF VARIANCE - FROM MEAN
SS DF MS F
REGRESSION 173.52 7. 24.788 47.888
ERROR 12.423 24. 0.51763 P-VALUE
TOTAL 185.94 31. 5.9981 0.000
VARIABLE ESTIMATED STANDARD T-RATIO PARTIAL STANDARDIZED ELASTICITY
NAME COEFFICIENT ERROR 24 DF P-VALUE CORR. COEFFICIENT AT MEANS
URLAG 0.80141 0.6337E-01 12.65 0.000 0.932 0.7978 0.8026
BR -0.24915 0.6583E-01 -3.785 0.001-0.611 -0.3982 -0.2878
BRLAG 0.38696 0.6879E-01 5.625 0.000 0.754 0.6071 0.4582
ER 0.64460 2.510 0.2568 0.800 0.052 0.0371 0.1262
ERLAG -0.63452 2.267 -0.2799 0.782-0.057 -0.0377 -0.1240
WTI -0.38686E-01 0.2390E-01 -1.619 0.119-0.314 -0.3010 -0.1782
WTILAG 0.52081E-01 0.2738E-01 1.902 0.069 0.362 0.3070 0.2181
CONSTANT -0.98996E-01 2.011 -0.4922E-01 0.961-0.010 0.0000 -0.0151
|_genr lagehat4=lag(ehat4)
|_smpl 35 35
|_genr lagehat4=0
|_smpl 35 66
|_?ols ehat4 lagehat4 urlag br brlag er erlag wti wtilag
|_gen1 bg1=$n*$r2
|_smpl 36 66
|_?ols ehat4 lagehat4 urlag br brlag er erlag wti wtilag
|_gen1 bg2=$n*$r2
|_print bg1 bg2
BG1 0.1231635 BG2 0.4234580
|_* test for joint significance of er and wti terms
|_smpl 35 66
|_?ols ur urlag br brlag er erlag wti wtilag
|_test
|_test er = 0
|_test erlag=0
|_test wti=0
|_test wtilag=0
|_end
F STATISTIC = 1.0529290 WITH 4 AND 24 D.F. P-VALUE= 0.40106
|_* re-estimate model without er and wti variables
|_ols ur urlag br brlag / resid=ehat5
R-SQUARE = 0.9215 R-SQUARE ADJUSTED = 0.9130
SUM OF SQUARED ERRORS-SSE= 14.603
ANALYSIS OF VARIANCE - FROM MEAN
SS DF MS F
REGRESSION 171.34 3. 57.112 109.506
ERROR 14.603 28. 0.52154 P-VALUE
TOTAL 185.94 31. 5.9981 0.000
VARIABLE ESTIMATED STANDARD T-RATIO PARTIAL STANDARDIZED ELASTICITY
NAME COEFFICIENT ERROR 28 DF P-VALUE CORR. COEFFICIENT AT MEANS
URLAG 0.82477 0.5424E-01 15.21 0.000 0.944 0.8210 0.8259
BR -0.26891 0.6368E-01 -4.223 0.000-0.624 -0.4297 -0.3106
BRLAG 0.42145 0.6546E-01 6.438 0.000 0.773 0.6612 0.4990
CONSTANT -0.94288E-01 0.4281 -0.2202 0.827-0.042 0.0000 -0.0144
DURBIN-WATSON = 1.8046 VON NEUMANN RATIO = 1.8628 RHO = 0.08802
|_genr lagehat5=lag(ehat5)
|_* bg test option 1 --- use 0 for lagehat in 1st observations
|_smpl 35 35
|_genr lagehat5=0
|_smpl 35 66
|_?ols ehat5 lagehat5 urlag br brlag
|_gen1 bg1=$n*$r2
|_*option 2 --- drop the 1st observation
|_smpl 36 66
|_?ols ehat5 lagehat5 urlag br brlag
|_gen1 bg2=$n*$r2
|_print bg1 bg2
BG1 0.2725421 BG2 0.3394586
* test for the significance of the long-rum impact of br
|_test br+brlag=0
TEST VALUE = 0.15254 STD. ERROR OF TEST VALUE 0.35268E-01
T STATISTIC = 4.3251576 WITH 28 D.F. P-VALUE= 0.00017
F STATISTIC = 18.706988 WITH 1 AND 28 D.F. P-VALUE= 0.00017
WALD CHI-SQUARE STATISTIC = 18.706988 WITH 1 D.F. P-VALUE= 0.00002
UPPER BOUND ON P-VALUE BY CHEBYCHEV INEQUALITY = 0.05346
|_stop