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. 2021 Feb 5;28(22):28624–28639. doi: 10.1007/s11356-021-12668-5

Table 8.

FMOLS, DOLS, and CCR tests

COVID-19 confirmed cases as the dependent variable
Variables FMOLS DOLS CCR
Coeff Std. Error Coeff Std. Error Coeff Std. Error
Constant −3813.93 35650.03 333.60 55014.96 −10014.53 43916.55
Air pressure 13.5608 34.6428 10.3953 53.7895 20.1349 43.1194
Humidity −43.0721 77.6577 −41.6560 95.2688 −46.4783 82.9315
Temperature 84.5604 159.0306 78.8716 178.9635 88.9198 161.7144
PM2.5 −57.8187* 29.9354 −57.2588 35.9549 −60.7429* 32.2158
Wind speed −205.7897 304.2316 −419.8414 464.8477 −224.1494 367.4614
COVID-19 death cases as the dependent variable
Variables FMOLS DOLS CCR
Coeff Std. Error Coeff Std. Error Coeff Std. Error
Constant −284.7038 826.7618 −659.8415 1270.1610 −398.1481 1019.7310
Covid-19 cases 0.0428*** 0.0036 0.0461*** 0.0040 0.0426*** 0.0037
Air pressure 0.4902 0.8033 0.8682 1.2426 0.6029 1.0007
Humidity −0.5612 1.8013 −0.7017 2.2055 −0.5387 1.9319
Temperature −2.2156 3.7034 −3.7094 4.1433 −1.9952 3.8094
PM2.5 −1.5480** 0.7145 −1.2565 0.8602 −1.6409** 0.7721
Wind speed 0.4301 7.0864 −0.0466 10.8573 0.7236 8.5659

Source: authors’ computation

*, **, and *** denote statistical significance at 10%, 5%, and 1% levels, respectively