Continue game play:

To continue game play after a quick loss, immediately select the "New
Game" option after losing. Cancel that option, then obtain more money
by selling buildings, borrowing from the bank, or selling shares.

Hint: Quick stock deals:

Buy stocks on June 30 since dividends are always paid on July 1. Note:
when purchasing a stock worth greater than $100, its price must rise 21
points before any profit can be made