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Questions › DSE › DSE 2012 › Q38
2 marksEconometrics › Dummy variables and functional forms › Log, quadratic and other functional formsModerateabout 3 min

DSE 2012 Question 38: Dummy variables and functional forms

Suppose you have 500 observations and you regress wagewagewage (measured in rupees per hour) on experience in the labour market, experexperexper (measures in years), and on experience in the labour market squared, (exper2)(exper^{2})(exper2). Your estimated OLS equation is wage^=3.73+0.298 exper−0.0061 exper2\widehat{wage}=3.73+0.298\,exper-0.0061\,exper^{2}wage​=3.73+0.298exper−0.0061exper2 with standard errors 0.350.350.35, 0.0410.0410.041 and 0.00090.00090.0009 respectively (in brackets). The estimated equation implies

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Suppose you have 500 observations and you regress wage (measured in rupees per hour) on experience in the labour market, exper (measures in years), and on experience in the labour market squared, (exper²). Your estimated OLS equation is ŵâĝê=3.73+0.298 exper-0.0061 exper² with standard errors 0.35, 0.041 and 0.0009 respectively (in brackets). The estimated equation implies (A) The returns to experience is strictly increasing (B) The returns to experience is strictly diminishing (C) The returns to experience is constant (D) Experience has no statistically significant effect on wage

Also written as: Suppose you have 500 observations and you regress wage (measured in rupees per hour) on experience in the labour market, exper (measures in years), and on experience in the labour market squared, (exper^2). Your estimated OLS equation is wage_hat=3.73+0.298 exper-0.0061 exper^2 with standard errors 0.35, 0.041 and 0.0009 respectively (in brackets). The estimated equation implies

Dummy variables and functional forms has come up 20 times in 6 exams since 2011.

What this question tests

This question is on Log, quadratic and other functional forms, part of Dummy variables and functional forms in Econometrics.

Choosing and interpreting log-log, semi-log, quadratic and reciprocal specifications.

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Question from the DSE 2012 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.