Crash of the National Bank
Although this year’s outcome from your farm was rather promising, a crash of the national bank unsettles the market in your disfavor.
Crops and livestock yield less, and living costs increase this year.
For game balancing reasons, this event is more likely to happen when the player is otherwise performing well and making a profit.
Britannica on Third World debt:
“BANKING CRISES IN EMERGING ECONOMIES: ORIGINS AND POLICY OPTIONS” by Morris Goldstein and Philip Turner, 1996.