Appendix Table A1 (continued)

Independent variable, statistic	2001-2003	2004-2006	2001-2006
C Equation	H Equation	C Equation	H Equation	C Equation	H Equation
Value	P-val.	Value	P-val.	Value	P-val.	Value	P-val.	Value	P-val.	Value	P-val.
Transportation equipment (VSIC 34, 35), contemporaneous estimates
LE_{ijt}	0.9969	0.00	0.9956	0.00	0.9838	0.00	0.9765	0.00	0.9821	0.00	0.9797	0.00
LK_{ijt}	0.3027	0.00	0.3045	0.00	0.2854	0.00	0.2882	0.00	0.2785	0.00	0.2809	0.00
LE_{ijt}^{2}	-0.0944	0.09	-0.0943	0.09	-0.1411	0.01	-0.1413	0.01	-0.1164	0.00	-0.1165	0.00
LK_{ijt}^{2}	0.0253	0.04	0.0256	0.04	0.0055	0.58	0.0066	0.52	0.0085	0.28	0.0093	0.25
LELK_{ijt}	0.0142	0.75	0.0141	0.75	0.0773	0.08	0.0761	0.09	0.0476	0.13	0.0466	0.14
DS_{ijt}	-0.0591	0.67	-0.0591	0.67	0.2525	0.05	0.2520	0.05	0.0909	0.37	0.0914	0.36
DM_{ijt}	-0.3179	0.15	-0.3220	0.14	-0.1034	0.46	-0.1100	0.43	-0.1639	0.22	-0.1696	0.21
DJ_{ijt}	0.5608	0.01	0.5549	0.02	0.8520	0.00	0.8350	0.00	0.7017	0.00	0.6935	0.00
C_{jt}, H_{jt}	0.0701	0.86	-0.3038	0.84	-0.2373	0.75	-4.0678	0.04	-0.1239	0.75	-2.2839	0.08
Constant	0.4758	0.12	0.5543	0.04	0.3287	0.44	0.6640	0.02	0.3802	0.16	0.6080	0.01
Obs., Eq.	1,206	1	1,206	2	1,531	1	1,531	2	2,737	1	2,737	2
Groups	588	-	588	-	781	-	781	-	977	-	977	-
R^{2}-within	0.383	-	0.382	-	0.252	-	0.255	-	0.300	-	0.300	-
R^{2}-between	0.720	-	0.720	-	0.745	-	0.746	-	0.723	-	0.724	-
R^{2}-overall	0.723	-	0.723	-	0.757	-	0.758	-	0.737	-	0.737	-
T,CD	17.82	0.00	17.98	0.00	12.97	0.00	14.12	0.00	16.78	0.00	17.77	0.00
T,DS=DM	1.26	0.26	1.29	0.26	4.86	0.03	5.00	0.03	2.92	0.09	3.10	0.08
T,DS=DJ	7.28	0.01	7.18	0.01	10.11	0.00	9.31	0.00	11.44	0.00	11.08	0.00
T,DM=DJ	11.79	0.00	11.77	0.00	25.58	0.00	23.85	0.00	20.73	0.00	20.39	0.00
Transportation equipment (VSIC 34, 35), estimates with lagged labor, capital, and concentration
LE_{ijt-1}	0.7679	0.00	0.7690	0.00	0.6783	0.00	0.6740	0.00	0.7016	0.00	0.7022	0.00
LK_{ijt-1}	0.2447	0.00	0.2408	0.00	0.3806	0.00	0.3837	0.00	0.2809	0.00	0.2779	0.00
LE_{ijt-1}^{2}	0.0639	0.21	0.0628	0.22	0.0636	0.11	0.0620	0.12	0.0379	0.24	0.0384	0.23
LK_{ijt-1}^{2}	0.0342	0.01	0.0328	0.02	0.0440	0.00	0.0447	0.00	0.0372	0.00	0.0366	0.00
LELK_{ijt-1}	-0.0579	0.21	-0.0553	0.23	-0.0956	0.00	-0.0953	0.00	-0.0607	0.02	-0.0600	0.02
DS_{ijt}	0.1136	0.51	0.1141	0.51	0.2749	0.07	0.2759	0.07	0.1705	0.18	0.1700	0.18
DM_{ijt}	0.2671	0.25	0.2775	0.23	0.3813	0.05	0.3773	0.06	0.4221	0.01	0.4268	0.01
DJ_{ijt}	1.1610	0.00	1.1691	0.00	0.9117	0.00	0.9014	0.00	1.0229	0.00	1.0215	0.00
C_{jt-1}, H_{jt-1}	0.2534	0.49	1.4113	0.19	-1.6105	0.00	-5.3490	0.01	0.0892	0.77	1.1106	0.26
Constant	0.4076	0.18	0.3616	0.18	1.2367	0.00	0.9436	0.00	0.4034	0.09	0.3067	0.14
Obs., Eq.	802	1	802	2	1,091	1	1,091	2	1,893	1	1,893	2
Groups	389	-	389	-	485	-	485	-	586	-	586	-
R^{2}-within	0.241	-	0.245	-	0.083	-	0.082	-	0.138	-	0.139	-
R^{2}-between	0.717	-	0.716	-	0.785	-	0.785	-	0.752	-	0.752	-
R^{2}-overall	0.715	-	0.715	-	0.774	-	0.774	-	0.745	-	0.745	-
T,CD	7.41	0.06	6.94	0.07	19.06	0.00	19.51	0.00	24.33	0.00	23.53	0.00
T,DS=DM	0.43	0.51	0.48	0.49	0.32	0.57	0.28	0.00	2.01	0.16	2.10	0.15
T,DS=DJ	12.37	0.00	12.60	0.00	6.74	0.01	6.41	0.01	15.82	0.00	15.82	0.00
T,DM=DJ	9.65	0.00	9.61	0.00	4.18	0.04	3.98	0.05	7.14	0.01	0.01	7.05

Note: T,CD is a Wald test for Cobb-Douglas technology (i.e., a test that coefficients on LE, LK, and LELK are all 0); $ T,D_{_}=D_{_} $ are Wald tests that coefficients on the ownership dummies specified are equal. Full results including coefficients on year and industry dummies are available from the authors.