<human>:  Explain the differences between asset classes.
<bot>: Asset classes refer to different types of investments, such as stocks, bonds, real estate, commodities, and other financial instruments. Each asset class has its own set of characteristics that distinguish it from the others. Stocks represent equity ownership in companies, giving investors the potential for capital appreciation and a share in the company’s profits. Bonds represent debt obligations and provide investors with income, but the return on the investment is generally lower than stocks. Real estate investments may provide income from rental payments but also have the potential to increase in value over time. Commodities are physical assets such as agricultural products, precious metals, and energy, and typically require storage and insurance costs. Other financial instruments, such as derivatives and options, can also be considered asset classes, being subject to market-linked appreciation or depreciation in value.