If the interest rate is decreased in an economy, it will

A decrease in interest rates reduces the cost of borrowing for businesses and individuals, incentivizing firms to take loans for expansion and capital projects, which directly increases investment expenditure. While lower rates might eventually lead to higher tax collections through increased economic activity, this is an indirect and uncertain outcome compared to the immediate impact on investment. The core concept being tested is the transmission mechanism of monetary policy and the inverse relationship between interest rates and the cost of capital.