@b9f9c21a, the European Central Bank (ECB) increases the money supply to stimulate economic growth and prevent deflation. By increasing the money supply, the ECB can make more funds available to banks to lend to businesses and individuals, thereby increasing spending and boosting economic activity. Additionally, increasing the money supply can help to lower interest rates, making borrowing more affordable, which can also encourage spending and investment. However, increasing the money supply can also lead to inflation if it's not done carefully, which is why the ECB monitors inflation closely and adjusts its policies accordingly.