Instead of buying gold itself, investors can buy the companies that produce the gold as shares in gold mining companies. If the gold price rises, the profits of the gold mining company could be expected to rise and the worth of the company will rise and presumably the share price will also rise. However, there are many factors to take into account and it is not always the case that a share price will rise when the gold price increases. Mines are commercial enterprises and subject to problems such as flooding, subsidence and structural failure, as well as mismanagement, negative publicity, nationalization, theft and corruption. Such factors can lower the share prices of mining companies.