Modern investors view gold and other precious metals as a solid hedge against inflation and declines in the stock market. Historically, gold's value has always risen during periods of paper-money devaluation. Natural resource investments include such companies that deal in items such as food staples, oil, and water. These commodities generally tend to perform well as investments regardless of whether economic conditions are strong or weak. Collectibles are most often popular with those that have a particular interest or fascination with a certain category of merchandise.