Table 9.
Augmented mean group (COVID-19 confirmed cases as the dependent variable)
| Countries/variables | Constant | Air pressure | Humidity | PM2.5 | Temperature | Wind speed |
|---|---|---|---|---|---|---|
| Overall | 34620.77 | −35.6179 | 12.2519 | −6.8876 | −97.2345 | −28.9052 |
| Brazil | −630951.40** | 625.0123** | 156.0854*** | 377.2397*** | 652.9533*** | 2855.2790*** |
| Chile | −27124.40 | 25.1506 | −8.0566 | 7.0845 | −303.7789*** | 1777.0260*** |
| India | 95356.34*** | −110.5546*** | 128.8052*** | 17.4921*** | 238.5444*** | −387.8335*** |
| Iran | 6003.82 | −5.7759 | 11.9933** | −4.71432*** | 37.9936** | −14.17705 |
| Italy | 127826.00*** | −121.9681*** | −12.1677 | 36.2624*** | −246.0241*** | −134.9306*** |
| Peru | −253809.80*** | 265.7233*** | −52.0348** | 0.3423 | −440.5213*** | −11.9321 |
| Russia | 63184.86*** | −60.9156*** | −8.0054 | −42.1488*** | 212.4598*** | 41.2581 |
| Spain | 49911.29*** | −45.4864*** | 18.0563 | −23.6618*** | −181.8085*** | −78.1316 |
| UK | −7364.99 | 12.8288 | −62.5167*** | −0.6704 | −123.8335*** | 349.5079*** |
| USA | 7501.69 | −3.0417 | 61.6737 | −66.2375 | −641.5810*** | 22.7662 |
Source: authors’ computation
*, **, and *** denote statistical significance at 10%, 5%, and 1% levels, respectively