Institutional investors are organisations which pool large sums of money an invest those sums in companies. They include banks, insurance companies, retirement or pension funds, hedge funds and mutual funds. Their role in the economy is to act as highly specialised investors on behalf of others. For instance, an ordinary person will have a pension from his employer. The employer gives that person's pension contributions to a fund. The fund will buy shares in a company, or some other financial product. Funds are useful because they will hold a broad portfolio of investments in many companies. This spreads risk, so if one company fails, it will be only a small part of the whole fund's investment. Institutional investors will have a lot of influence in the management of corporations because they will be entitled to exercise the voting rights in a company. They can engage in active role in corporate governance. Furthermore, because institutional investors have the freedom to buy and sell shares, they can play a large part in which companies stay solvent, and which go under. Influencing the conduct of listed companies, and providing them with capital are all part of the job of investment management.