SW_2e_EE_ch13

# SW_2e_EE_ch13 - Chapter 13 Experiments and...

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Chapter 13 Experiments and Quasi-Experiments Solutions to Empirical Exercises 1. The following table provides answers to (a)–(c) Dependent Variable = Call_Back Regressor (1) (2) (3) (4) Black 0.032** (0.008) 0.038** (0.012) 0.023* (0.011) Female × Black 0.008 (0.012) High 0.014 (0.008) 0.023 (0.012) High × Black 0.018 (0.016) Intercept 0.097** (0.006) 0.097** (0.006) 0.073** (0.005) 0.084** (0.008) Significant at the 5% * and 1% ** level. (a) From (1) in the table, the call-back rate for whites is 0.097 and the call-back for blacks is 0.097 0.032 = 0.065. The difference is 0.032 which is statistically significant at the 1% level. These number implies that 9.7% of resumes with white-sounding names generated a call back. Only 6.5% of resumes with black-sounding names generated a call back. The difference is large. (b) From (2) in the table, the call-back rate for male blacks 0.097 0.038 = 0.059, and for female blacks is 0.097 0.038 + 0.008 = 0.067. The difference is 0.008, which is not significant at the 5% level. (c) From (3) in the table, the call-back rate for low-quality resumes is 0.073 and the call-back rate for high-quality resumes is 0.073 + 0.014 = 0.087. The difference is 0.014, which is not significant at the 5% level. From (4) the (high-quality) (low-quality) difference for whites is 0.023 and for blacks is 0.023 0.018 = 0.005; the black-white difference is 0.018 which is not statistically significant at the 5% level.

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## This note was uploaded on 06/05/2009 for the course ECON 140 taught by Professor Duncan during the Spring '08 term at University of California, Berkeley.

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SW_2e_EE_ch13 - Chapter 13 Experiments and...

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