In my opinion, investment spending has the greatest impact on the economy. Investment spending refers to the purchase of capital goods, such as factories, machinery, and equipment, which are used to produce other goods and services. This type of spending is important because it helps to increase the productive capacity of an economy, which can lead to economic growth and development. When businesses invest in new capital goods, they are able to increase their output and potentially hire more workers, which can have a ripple effect on the rest of the economy. Additionally, investment spending can also lead to technological advances and increased efficiency, which can further boost economic growth. In my own personal experience, I have seen firsthand how investment spending can have a positive impact on a company's bottom line and contribute to the overall strength of the economy.