Revisiting The Bell Curve Debate Regarding the Effects of Cognitive Ability on Wages



Table 1: Independent variable is Log of Hourly Wage Rate (Cross-sectional Analysis)

1A

1B

1C

1D

Time Period

1989

2002

2002

2002

Number of Observations

7799

6156

3352

3352

AFQT_n

0.178**

0.238**

0.027

(0.011)

(0.012)

(0.026)

General Intelligence

0.040

(0.035)

Age_n

0.031**

-0.015

(0.009)

(0.010)

SES_n

0.083**

0.145**

(0.014)

(0.016)

Family Income_n

0.063*

0.062**

(0.017)

(0.017)

Mother's Edu_n

-0.035

-0.039

(0.019)

(0.019)

Father's Edu_n

0.057**

0.056**

(0.020)

(0.020)

Parents' SEI_n

0.024

0.024

(0.016)

(0.015)

Siblings_n

0.011

0.014

(0.015)

(0.015)

Northeast Region

0.100*

0.107*

(0.044)

(0.049)

Northcentral Region

0.020

0.024

(0.040)

(0.044)

South Region

0.041

0.049

(0.043)

(0.046)

Black

-0.016

0.014

(0.038)

(0.040)

Black*test

0.126**

0.123**

(0.035)

(0.040)

Hispanic

0.084*

0.094*

(0.042)

(0.042)

Hispanic*test

0.051

0.047

(0.036)

(0.037)

Male

0292**

0.270**

(0.026)

(0.026)

Male*test

0.055

0.069*

(0.029)

(0.031)

Two-Parent Family

-0.048

-0.048

(0.029)

(0.029)

Education (2002)

0.069**

0.065**

(0.010)

(0.010)

Job Tenure (2002)

0.021**

0.021**

(0.002)

(0.002)

Labor Market Exp (2002)

-0.010

-0.013*

(0.006)

(0.006)

Married (2002)

0.152**

0.151**

(0.031)

(0.031)

Children (2002)

0.002

0.001

(0.013)

(0.013)

Urban (2002)

0.125**

0.127**

(0.029)

(0.029)

Local Unemployment (2002)

-0.001

-0.001

(0.006)

(0.006)

constant

2.047**

2.630**

1.369**

1.554**

(0.008)

(0.009)

(0.235)

(0.242)

R-Squared

0.213

0.185

0.279

0.282

standard errors in parentheses; *significant at 5 percent level ** significant at 1 percent level

26



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