-------------------------------------------------------------------------------------------------------- log: T:\170\2sls.log log type: text opened on: 12 Apr 2005, 11:54:47 . ivreg rate percapinc poverty ( crimespendpc = over64 ) Instrumental variables (2SLS) regression Source | SS df MS Number of obs = 42 -------------+------------------------------ F( 3, 38) = 1.15 Model | 11376743.7 3 3792247.91 Prob > F = 0.3397 Residual | 67319573.9 38 1771567.73 R-squared = 0.1446 -------------+------------------------------ Adj R-squared = 0.0770 Total | 78696317.6 41 1919422.38 Root MSE = 1331 ------------------------------------------------------------------------------ rate | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- crimespendpc | 14.65961 8.88237 1.65 0.107 -3.321805 32.64103 percapinc | -.0965488 .1329552 -0.73 0.472 -.3657026 .172605 poverty | 37.22295 55.97839 0.66 0.510 -76.09937 150.5453 _cons | 4317.127 1797.315 2.40 0.021 678.6526 7955.602 ------------------------------------------------------------------------------ Instrumented: crimespendpc Instruments: percapinc poverty over64 ------------------------------------------------------------------------------ . ivreg rate percapinc poverty ( crimespendpc = over64 poverty ) Instrumental variables (2SLS) regression Source | SS df MS Number of obs = 42 -------------+------------------------------ F( 3, 38) = 1.15 Model | 11376743.7 3 3792247.91 Prob > F = 0.3397 Residual | 67319573.9 38 1771567.73 R-squared = 0.1446 -------------+------------------------------ Adj R-squared = 0.0770 Total | 78696317.6 41 1919422.38 Root MSE = 1331 ------------------------------------------------------------------------------ rate | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- crimespendpc | 14.65961 8.88237 1.65 0.107 -3.321805 32.64103 percapinc | -.0965488 .1329552 -0.73 0.472 -.3657026 .172605 poverty | 37.22295 55.97839 0.66 0.510 -76.09937 150.5453 _cons | 4317.127 1797.315 2.40 0.021 678.6526 7955.602 ------------------------------------------------------------------------------ Instrumented: crimespendpc Instruments: percapinc poverty over64 ------------------------------------------------------------------------------ . ivreg rate percapinc poverty over64 ( crimespendpc = over64 ) equation not identified; must have at least as many instruments not in the regression as there are instrumented variables r(481); . regress rate crimespendpc percapinc poverty Source | SS df MS Number of obs = 42 -------------+------------------------------ F( 3, 38) = 2.17 Model | 11516447.4 3 3838815.8 Prob > F = 0.1073 Residual | 67179870.2 38 1767891.32 R-squared = 0.1463 -------------+------------------------------ Adj R-squared = 0.0789 Total | 78696317.6 41 1919422.38 Root MSE = 1329.6 ------------------------------------------------------------------------------ rate | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- crimespendpc | 13.12413 5.462225 2.40 0.021 2.066431 24.18182 percapinc | -.0799197 .1091121 -0.73 0.468 -.3008056 .1409663 poverty | 37.8096 55.85642 0.68 0.503 -75.26581 150.885 _cons | 4238.792 1759.652 2.41 0.021 676.5625 7801.022 ------------------------------------------------------------------------------ . log close log: T:\170\2sls.log log type: text closed on: 12 Apr 2005, 12:05:53 ------------------------------------------------------------------------------------------------------