The amount of cash outflows for the increase in long-term investments during a specific period. An increase in long-term investments means that a company has purchased or acquired some new long-term assets, such as stocks, bonds, mutual funds, and real estate. An increase in long-term investments may result in an increase in the carrying value and interest or dividend income of these assets. An increase in long-term investments is reported as part of cash flow from investing activities on the cash flow statement.