When economists refer to the gross domestic product they mean?

When economists refer to gross domestic product (GDP), they mean the total monetary value of all finished goods and services produced within a country's borders in a specific time period, typically measured annually or quarterly. GDP serves as a comprehensive indicator of a nation's economic performance and health, reflecting the size and productivity of its economy. It can be calculated using three approaches: production, income, or expenditure, each providing insights into different aspects of economic activity.