*4.2. Regression Results*

In this study, the regression of the model of Equation (6) was performed using Stata15SE software, and the results are shown in Table 3. Table 3(I), (II) and (III) show the regression results of Equation (6) controlling for random effects, fixed effects and two-way fixed effects, respectively. It can be found that all three fail the 10% significance test, indicating that there is no definite relationship between land economic efficiency and carbon emissions in eastern China and hypothesis H1 is not valid. However, there are regional differences in carbon emissions, and the more economically developed regions are more "green" [44]. The essence of this study is to investigate the impact of land economic efficiency on carbon emissions in economically prosperous regions. Although the overall economic level of eastern China is higher than that of central and western China, there are still some provinces and prefecture-level cities with average economic levels.

**Table 3.** Regression results for the spatio-temporal fixed effects of land economic efficiency \*.


\* indicate statistical significance at the 10% levels.
