What is the GDP of a product if an income a seller earns is less than the price the seller bought the product for? Would the gdp then be negative or would it not be added to gdp?

To determine whether the GDP (Gross Domestic Product) of a product is negative or not added to GDP, we need to understand how GDP is calculated.

GDP is a measure of the total value of goods and services produced within a country's borders during a specific time period (usually a year). It can be calculated using three major approaches: the expenditure approach, the income approach, and the production approach.

The expenditure approach calculates GDP by summing up the total spending on goods and services in an economy. This includes consumption by households, investment by businesses, government spending, and net exports (exports - imports). This approach focuses on the final value of goods and services produced.

The income approach, on the other hand, calculates GDP by summing up all the income earned by individuals and businesses involved in the production of goods and services. This includes employee compensation, business profits, rental income, and indirect taxes minus subsidies. This approach focuses on the income generated from the production process.

Now, back to your question. If the income a seller earns from selling a product is less than the price the seller bought the product for, we can assume that the seller has incurred a loss. This loss affects the income earned from the production process and would be reflected in the income approach of calculating GDP.

In the income approach, the negative income from the loss would be subtracted from the overall income generated by the economy and could potentially reduce the GDP. However, it's important to note that a single loss from a single transaction is unlikely to significantly impact the overall GDP of a country.

Overall, if a seller incurs a loss, it can have a negative impact on income and potentially reduce the GDP, but this impact would need to be analyzed in the context of the entire economy and its transactions.