What affect the national debt?

National debt is affected by various factors, including government spending, tax revenue, and economic conditions. When a government runs a budget deficit, it borrows money to cover the shortfall, increasing the national debt. Additionally, interest rates and inflation can influence the cost of servicing that debt. Economic growth can help reduce debt-to-GDP ratiOS, while recessions often lead to higher debt levels due to decreased revenues and increased spending on social programs.