In order to calculate the mortality rate, the same database on COVID-19 as the incidence rate will be used, however, the column on the cumulative total of deaths will be used. The data for the population last 2019 will also be used in determining the cause-specific mortality rates of the different countries.
The economic metrics that the study will use are the gross domestic product and the gross domestic product per capita. Gross domestic product is a standardized economic metric of a country’s performance on a global level, with the calculation involving the market value of all the goods and services that a country produces in a given timeframe \citep*{Mallet2012}. According to the same article by Mallet and Keen, the GDP can be calculated using the following formula:
\[\text{GDP}=\text{private consumption}+\text{gross investment}+\text{government spending}+\text{exports}-\text{imports}\]