Appendix Table A1: Details for Random Effects Estimates of Productivity Differentials and Productivity Effects of Concentration (excluding year, region and industry dummies, robust standard errors)

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.
Manufacturing less other manufacturing, contemporaneous estimates
LE ijt	0.7346	0.00	0.7345	0.00	0.7216	0.00	0.7215	0.00	0.7504	0.00	0.7505	0.00
LK ijt	0.3317	0.00	0.3318	0.00	0.3071	0.00	0.3072	0.00	0.2882	0.00	0.2883	0.00
LE ijt 2	-0.0310	0.00	-0.0307	0.00	-0.0137	0.08	-0.0136	0.08	-0.0213	0.00	-0.0212	0.00
LK ijt 2	0.0244	0.00	0.0244	0.00	0.0155	0.00	0.0155	0.00	0.0132	0.00	0.0133	0.00
LELK ijt	0.0083	0.37	0.0083	0.36	0.0113	0.10	0.0113	0.10	0.0163	0.00	0.0163	0.00
DS ijt	0.2281	0.00	0.2278	0.00	0.2464	0.00	0.2465	0.00	0.2334	0.00	0.2332	0.00
DM ijt	-0.1710	0.00	-0.1708	0.00	-0.0450	0.16	-0.0453	0.16	-0.0499	0.09	-0.0503	0.09
DJ ijt	0.3775	0.00	0.3767	0.00	0.4328	0.00	0.4325	0.00	0.3525	0.00	0.3518	0.00
Cjt, Hjt	0.5506	0.00	1.1486	0.00	-0.1418	0.15	-0.1510	0.55	-0.0841	0.23	0.1649	0.31
Constant	-0.0142	0.82	0.0860	0.14	-0.0783	0.12	-0.1007	0.03	-0.0616	0.19	-0.0881	0.05
Obs., Eq.	22,152	1	22,152	2	33,154	1	33,154	2	55,306	1	55,306	2
Groups	10,888	-	10,888	-	16,598	-	16,598	-	19,833	-	19,833	-
R²-within	0.373	-	0.373	-	0.185	-	0.184	-	0.257	-	0.257	-
R²-between	0.641	-	0.641	-	0.629	-	0.629	-	0.615	-	0.615	-
R²-overall	0.658	-	0.658	-	0.661	-	0.661	-	0.655	-	0.655	-
T,CD	157.53	0.00	157.07	0.00	126.89	0.00	126.92	0.00	156.91	0.00	157.11	0.00
T,DS=DM	70.05	0.00	69.91	0.00	60.57	0.00	60.70	0.00	67.10	0.00	67.23	0.00
T,DS=DJ	5.30	0.02	5.27	0.00	10.25	0.00	10.20	0.00	4.98	0.03	4.93	0.03
T,DM=DJ	67.33	0.00	67.08	0.00	68.27	0.00	68.18	0.00	57.18	0.00	57.06	0.00
Manufacturing less other manufacturing, estimates with lagged labor, capital, & concentration
LE ijt-1	0.5770	0.00	0.5770	0.00	0.5174	0.00	0.5173	0.00	0.5374	0.00	0.5375	0.00
LK ijt-1	0.3173	0.00	0.3174	0.00	0.3043	0.00	0.3042	0.00	0.2702	0.00	0.2701	0.00
LE ijt-1 2	-0.0050	0.61	-0.0052	0.59	0.0293	0.00	0.0293	0.00	0.0132	0.03	0.0132	0.03
LK ijt-1 2	0.0297	0.00	0.0297	0.00	0.0273	0.00	0.0273	0.00	0.0217	0.00	0.0217	0.00
LELK ijt-1	0.0022	0.81	0.0025	0.79	-0.0116	0.10	-0.0115	0.10	0.0002	0.97	0.0002	0.98
DS ijt	0.2006	0.00	0.2009	0.00	0.2050	0.00	0.2048	0.00	0.1928	0.00	0.1921	0.00
DM ijt	0.1356	0.00	0.1358	0.00	0.2568	0.00	0.2561	0.00	0.3008	0.00	0.2996	0.00
DJ ijt	0.4922	0.00	0.4916	0.00	0.5332	0.00	0.5325	0.00	0.5404	0.00	0.5389	0.00
Cjt-1, Hjt-1	0.2497	0.00	0.7106	0.00	-0.0520	0.49	0.0654	0.75	-0.0899	0.09	0.0669	0.57
Constant	0.3237	0.00	0.3642	0.00	0.0390	0.48	0.0258	0.62	0.1967	0.00	0.1695	0.00
Obs., Eq.	14,957	1	14,957	2	23,102	1	23,102	2	38,059	1	38,059	2
Groups	7,226	-	7,226	-	10,054	-	10,054	-	11,766	-	11,766	-
R²-within	0.270	-	0.271	-	0.057	-	0.057	-	0.173	-	0.173	-
R²-between	0.676	-	0.676	-	0.688	-	0.688	-	0.675	-	0.675	-
R²-overall	0.676	-	0.676	-	0.686	-	0.686	-	0.676	-	0.676	-
T,CD	169.98	0.00	169.80	0.00	228.33	0.00	228.32	0.00	229.83	0.00	229.07	0.00
T,DS=DM	1.76	0.18	1.76	0.18	1.77	0.18	1.74	0.19	8.78	0.00	8.71	0.00
T,DS=DJ	20.04	0.00	19.89	0.00	27.74	0.00	27.68	0.00	42.00	0.00	41.80	0.00
T,DM=DJ	34.15	0.00	33.93	0.00	21.14	0.00	21.16	0.00	21.85	0.00	21.77	0.00