Which factor is NOT considered when calculating a country's Gross Domestic Product?

When calculating a country's Gross Domestic Product (GDP), the focus is primarily on the economic activities that reflect the value of all goods and services produced, as well as the market transactions that contribute to generating income within the economy. The primary components of GDP calculation include the total value of all final goods and services produced (which corresponds to the first option), market transactions (which account for the exchanges that occur within the economy), and the income received by individuals and businesses involved in these transactions.

Social costs, on the other hand, refer to the broader effects of economic activities on society, including environmental impacts, social welfare costs, and indirect costs that do not have a clear monetary value reflected in market transactions. While important for understanding overall economic health and societal welfare, social costs are not directly included in the GDP formula, which aims to measure only the market value of goods and services produced within a specific time frame. Thus, this makes social costs the factor that is not considered when calculating GDP.