Investors must keep a long-term outlook because historical data indicates that markets typically recover over time. During the 2008 financial crisis, for example, many investors pan657 slotsicked and sold off their assets at large losses instead of holding onto them until the market recovered. Also, having an emergency fund can act as a safety net in times of economic uncertainty. In addition to providing a safety net in the event of a job loss or unforeseen expenses, this fund should ideally cover three to six months' worth of living expenses.