共 64 条
[32]
Griliches Z., 1984, RD PATENTS PRODUCTIV, P465, DOI DOI 10.3386/W1068
[33]
Griliches Z., 1995, Production functions: the search for identification (No. w5067)
[35]
Hall B. H., 1990, 3366 NBER
[37]
Harhoff Dietmar., 1998, ECON INNOV NEW TECH, V6, P29, DOI [10.1080/10438599800000012, DOI 10.1080/10438599800000012]
[39]
HATZICHRONOGLOU T, 1997, 19972 STI OECD
[40]
JAFFE AB, 1986, AM ECON REV, V76, P984