Table 10 Results of the mediation effect test.
Product traceability effect | Technological innovation effect | Information sharing effect | Quality assurance effect | |
|---|---|---|---|---|
qua_saf | qua_saf | qua_saf | qua_saf | |
(1) | (2) | (3) | (4) | |
digital*post | 0.9287*** (2.85) | 0.4243*** (3.22) | 0.2843*** (2.58) | 0.9657** (1.96) |
SPS | −0.1881 (−0.39) | −0.0136*** (−2.08) | −0.3584*** (−7.19) | −0.3993*** (−8.04) |
open | 0.4396 (0.89) | 0.2996*** (15.00) | 0.2650*** (5.38) | 0.4647*** (9.46) |
pgdp | 0.6447 (1.31) | 0.0576** (2.11) | 0.3358*** (6.68) | 0.3334 (1.40) |
exchange | −0.6739 (−1.37) | −0.0723*** (−2.71) | −0.1819*** (−3.14) | −0.1147*** (−5.76) |
tariff | −0.2931*** (−5.94) | −0.0576** (−2.14) | −0.4067 (−1.52) | −0.4367 (−1.58) |
distance | −0.3035*** (−6.19) | −0.6540** (−2.47) | −0.1194*** (−4.42) | −0.1049*** (−3.51) |
cons | 0.2953*** (6.02) | 0.0124 (0.46) | 0.1374*** (5.14) | 0.0853*** (3.12) |
Firm-Product fixed effect | YES | YES | YES | YES |
Destination country-Product fixed effect | YES | YES | YES | YES |
Firm-Destination country fixed effect | YES | YES | YES | YES |
Product-Year fixed effect | YES | YES | YES | YES |
R2 | 0.7784 | 0.7781 | 0.7714 | 0.8412 |
N | 6376 | 6376 | 6376 | 6376 |
