Gross Domestic Product (GDP) is one of the most important indicators used to measure the economic performance of a country. It represents the total monetary value of all goods and services produced over a specific period. However, GDP can be calculated in different ways, with one of the most insightful methods being GDP based on Purchasing Power Parity (PPP). This approach adjusts for differences in the cost of living across countries, allowing for more accurate international comparisons. GDP based on PPP adjusts the nominal GDP of a country by taking into account the relative cost of goods and services in that country compared to others. This means that the same basket of goods and services should have the same price when compared internationally, regardless of local currency values. The global share of GDP based on PPP refers to the percentage of the world’s total economic output, adjusted for PPP, that is contributed by a specific country or region. This metric is used to assess a country’s economic size relative to the global economy. The global GDP share is calculated by dividing a country’s GDP based on PPP by the total global GDP based on PPP and then multiplying by 100 to get a percentage.