A decrease in interest rates means that those people who want to borrow money enjoy an interest rate cut. But this also means that those who are lending money, or buying securities such as bonds, have a decreased opportunity to make income from interest. If we assume investors are rational, a decrease in interest rates will prompt investors to move money away from the bond market to the equity market. At the same time, businesses will enjoy the ability to finance expansion at a cheaper rate, thereby increasing their future earnings potential, which, in turn, leads to higher stock prices. Investors and economists alike view lower interest rates as catalysts for expansion.
Overall, the unifying effect of an interest rate cut is the psychological effect it has on investors and consumers; they see it as a benefit to personal and corporate borrowing, which in turn leads to greater profits and an expanding economy.
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