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Table 4.

Kernel Matching Performance: Results of the Mean and Median Absolute Bias, Pseudo R-Squared, and LR Tests

	Pseudo R²	LR chi²	p>chi²	Mean Bias	Medium Bias
Unmatched	0.102	64.78	0	33.5	24.2
Matched	0.002	0.49	1.000	2.6	2.2
Unmatched	0.049	23.36	0.005	20.9	15.3
Matched	0	0.06	1.000	1.3	1.1
Unmatched	0.063	22.71	0.007	23.2	20.2
Matched	0.006	0.65	1.000	3.3	1.1
Unmatched	0.057	17.05	0.03	19.1	14.1
Matched	0.002	0.14	1.000	3.2	2.6
Unmatched	0.071	58.26	0.000	28.0	24.9
Matched	0.001	0.27	1.000	2.0	1.1
Unmatched	0.026	11.94	0.217	17.0	10.3
Matched	0	0.03	1.000	0.8	0.6
Unmatched	0.024	11.80	0.225	13.4	11.0
Matched	0.002	0.35	1.000	0.9	0.4
Unmatched	0.015	3.88	0.867	19.0	9.6
Matched	0	0.01	1.000	0.7	0.6

	Pseudo R²	LR chi²	p>chi²	Mean Bias	Medium Bias
Unmatched	0.102	64.78	0	33.5	24.2
Matched	0.002	0.49	1.000	2.6	2.2
Unmatched	0.049	23.36	0.005	20.9	15.3
Matched	0	0.06	1.000	1.3	1.1
Unmatched	0.063	22.71	0.007	23.2	20.2
Matched	0.006	0.65	1.000	3.3	1.1
Unmatched	0.057	17.05	0.03	19.1	14.1
Matched	0.002	0.14	1.000	3.2	2.6
Unmatched	0.071	58.26	0.000	28.0	24.9
Matched	0.001	0.27	1.000	2.0	1.1
Unmatched	0.026	11.94	0.217	17.0	10.3
Matched	0	0.03	1.000	0.8	0.6
Unmatched	0.024	11.80	0.225	13.4	11.0
Matched	0.002	0.35	1.000	0.9	0.4
Unmatched	0.015	3.88	0.867	19.0	9.6
Matched	0	0.01	1.000	0.7	0.6

LR = likelihood ratio.

Source: Author's calculations.