## 5 Analysis of Factors Influencing the Digital Service Trade Network of RCEP Member Countries
### Empirical Result Analysis
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline \multicolumn{1}{c}{\multirow{2}{*}{**Index**}} & \multicolumn{4}{c}{**Insurance and Pension Services**} & \multicolumn{4}{c}{**Financial Service**} \\ \hline \multirow{3}{*}{**Index**} & \multicolumn{2}{c}{**Weighted Trade Network**} & \multicolumn{2}{c}{**Unweighted Trade**} & \multicolumn{2}{c}{**Weighted Trade Network**} & \multicolumn{2}{c}{**Unweighted Trade**} \\ \cline{2-9}  & **2006** & **2021** & **2006** & **2021** & **2006** & **2021** & **2006** & **2021** \\ \hline \multirow{3}{*}{Constant} & 0.3417 *** & 0.2820 *** & 0.1634 *** & 0.2340 *** & 0.1271 *** & 0.1902 *** & 0.1191 *** & 0.2137 *** \\  & (0.0000) & (0.0000) & (0.0000) & (0.0000) & (0.0000) & (0.0000) & (0.0000) & (0.0000) \\ \cline{2-9}  & (0.0000) & (0.0000) & (0.0000) & (0.0000) & (0.0000) & (0.0000) & (0.0000) & (0.0000) \\ \cline{2-9}  & \(-0.0253\) ** & \(-0.0478\) & \(-0.0273\) ** & \(-0.0108\) *** & \(-0.0194\) ** & \(-0.0153\) & \(-0.0179\) * & \(-0.0212\) ** \\ \cline{2-9}  & (0.0083) & (0.0649) & (0.0079) & (0.0047) & (0.0044) & (0.0609) & (0.0459) & (0.0015) \\ \cline{2-9}  & 0.0631 & 0.0654 * & \(-0.0423\) ** & \(-0.0217\) ** & \(-0.0227\) ** & \(-0.0151\) ** & \(-0.0286\) ** & \(-0.0233\) ** \\ \cline{2-9}  & (0.0745) & (0.0466) & (0.0095) & (0.0002) & (0.0011) & (0.0017) & (0.0006) & (0.0001) \\ \cline{2-9}  & \(-0.0093\) & \(-0.0229\) * & \(-0.0509\) ** & \(-0.0115\) ** & \(-0.0167\) * & \(-0.0175\) * & \(-0.0940\) * & \(-0.0170\) ** \\ \cline{2-9}  & (0.0700) & (0.0194) & (0.0043) & (0.0002) & (0.0464) & (0.0349) & (0.0338) & (0.0074) \\ \cline{2-9}  & \(0.2237\) ** & \(0.2098\) ** & \(0.2571\) ** & \(0.2269\) ** & \(0.0945\) * & \(0.0335\) * & \(0.0313\) * & 0.2235 ** \\ \cline{2-9}  & (0.0069) & (0.0042) & (0.0078) & (0.0003) & (0.0324) & (0.0402) & (0.0300) & (0.0044) \\ \cline{2-9}  & \(-0.0986\) ** & \(-0.1143\) ** & \(-0.0159\) * & \(-0.0893\) & \(-0.0104\) ** & \(-0.0456\) ** & \(-0.0181\) ** & \(-0.0501\) * \\ \cline{2-9}  & (0.0025) & (0.0056) & (0.0164) & (0.0502) & (0.0037) & (0.0063) & (0.0012) & (0.0169) \\ \cline{2-9}  & Adjusted R2 & 0.0988 & 0.1074 & 0.1806 & 0.1402 & 0.0963 & 0.0718 & 0.1662 & 0.1743 \\ \hline \multicolumn{9}{c}{**Communication, Computer, and Information Technology (ICT)**} & \multicolumn{4}{c}{**Personal Entertainment Services**} \\ \hline \multirow{3}{*}{**Index**} & \multicolumn{2}{c}{**Weighted Trade Network**} & \multicolumn{2}{c}{**Unweighted Trade**} & \multicolumn{2}{c}{**Unweighted Trade Network**} \\ \cline{2-9}  & **2006** & **2021** & **2006** & **2021** & **2006** & **2021** & **2006** & **2021** \\ \hline \multirow{3}{*}{Constant} & 0.2899 *** & 0.1478 *** & 0.1098 *** & 0.2395 *** & 0.1434 *** & 0.1639 *** & 0.1809 *** & 0.2005 *** \\  & (0.0000) & (0.0000) & (0.0000) & (0.0000) & (0.0000) & (0.0000) & (0.0000) & (0.0000) \\ \cline{2-9}  & 0.1033 * & 0.1128 & \(-0.189\) ** & \(-0.376\) ** & \(-0.0223\) ** & \(-0.0479  
From the perspective of the overall trade network, for the difference in per capita GDP, in the regression results of the unweighted trade network in 2006 and 2021, the coefficient of per capita GDP difference is negative, reflecting that the difference in per capita GDP between member countries has a negative impact on the development of digital service trade and has passed the significance level tests of 5% and 1%, respectively, which is in line with the expected assumption of the coefficient of this variable. This indicates that the greater the difference in economic development level between two countries, the less likely it is to establish digital service trade links, that is, the more similar the economic development level between two countries, the easier it is to establish trade links. However, in the weighted trade network regression results of these two years, the coefficient of this variable is positive and did not pass the significance level test, indicating that this variable has almost no impact on the digital service trade value of both parties.