Dependent variable Independent Variables | (6) t-statistic of the estimated User-cost elasticity | (7) t-statistic of the estimated User-cost elasticity | (8) t-statistic of the estimated User-cost elasticity | (9) t-statistic of the estimated User-cost elasticity | (10) t-statistic of the estimated User-cost elasticity |
Constant | 3.7729*** (0.9659) | 1.6716 (2.3065) | 4.3486 (2.8528) | 5.1664* (3.0083) | 4.348503 (3.0717) |
TD: Type of data | 1.2508 (0.7687) | 1.7318** (0.8527) | 2.6910*** (0.8584) | 2.5008*** (0.8321) | 2.4634*** (0.8286) |
DSEST: Data structure and estimation methods | 0.1272 (0.7436) | 0.5116 (0.7790) | 0.3012 (0.8823) |
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USNOUS: US or not US country | 1.5054* (0.8186) | −0.5128 (0.8709) | 0.2099 (0.9113) | 8.1199*** (1.8664) | 8.3998*** (1.8342) |
TAUX: Rate of tax credit | 1.4389** (0.6299) | −1.5314 (0.8757) | 0.0910 (0.6996) | 2.4308*** (0.7301) | 2.4726*** (0.7298) |
TDY: includes time dummy |
| 2.9321 (2.2786) | 5.3515* (2.7827) | 4.4497* (2.5991) | −4.6433** (2.3526) |
NAUT: Number of authors | −2.3716*** (0.6341) | −2.9901 (0.6588) | −2.7701 (0.7050) | −2.3131*** (0.8890) | −2.4377*** (0.8933) |
IDUM: Industry dummy |
| 0.3846 (0.4991) | 0.5103 (0.4833) |
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HTD: High-tech subsamples firms | 8.3770*** (1.4195) | 7.3529*** (1.4674) | 6.9696*** (1.4889) | 5.3511*** (1.4433) | 5.1370*** (1.4534) |
SME: SME-dummy | −0.8039 (0.9620) | −1.0042 (0.9935) | −0.5234 (1.0239) | −0.1513 (0.9643) | −0.2766 (0.9701) |
LF: Large firms dummy | 1.3965* (0.8091) | 1.2790 (0.8142) | 0.7969 (0.9214) | 0.7905 (0.8216) | 0.8453 (0.8175) |
HM: Highmarketcomp.-Dummy | 6.3837*** (1.0301) | 6.0315*** (1.0657) | 7.1173*** (1.0862) | 4.8731*** (1.2892) | 4.0707*** (1.5078) |
MS: Market size dummy | −17.3173*** (1.4522) | −16.0271*** (1.5044) | −16.745*** (1.5172) | −17.5333*** (1.9957) | −17.595*** (1.9927) |
LABOUR: Tax price of Labour related to RD |
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| 4.9303** (2.4003) | 8.1922*** (2.4846) | 9.1584*** (2.6157) |