I would say that a "shoe event horizon" could be possible with other products. A positive feedback loop that cannot be interrupted(easily).
Management Event Horizon
There is an incentive when the pool of directors and upper level management is small to reduce the number of managers. This leaves more money for the remaining managers. The incentive to remove managers and directors is quite large. The incentive to add new managers is quite small.
However when upper management and the board of directors gets large enough managers have less incentive to prevent new people from becoming managers because each new manager would only shrink their take in bonuses and salary by a very small amount. This means that managers and the board of directors will actually try to increase their number in order to ease administrative burdens. However eventually any suggestion by the CEO to trim management or the board will be met with a calls to replace the CEO by the board, and managers trying to fight administrative reductions. At this point the company may loose profits, and managers may fire workers to justify salaries. Consultants and other managers may be hired, further worsening the corporations profit margin. This eventually results in a company very very top heavy with management, and few workers to support it.
At this point corporate restructuring may happen, and management styles may change either resulting in a highly managed company in a better position. The managers get paid less but there are more of them. Or if this goes badly and the company cannot improve its situation, the company may go out of business. The CEO and managers must either use incentives and superior market placement to support management or start cutting management. This can mean that the CEO is more likely to be removed if he is not being transparent with funds, and does not make the company profitable.
The concepts for coalition size in corporate management can be found in "The Dictators Handbook".
Alcohol and Gambling Event Horizon
Another such even horizon in some communities would be gambling and alcohol sales. This can be seen in some depressed desert areas in the united states. The areas were so depressed that people turned to alcohol as an escape. Unfortunately this also made them financially worse off. Eventually casino's and liquor sales would be one of the few businesses commonly associated with those areas.
Drug Event Horizon
Yet another "event horizon" is drug use. People who buy illegal street drugs are often depressed. The use of these drugs make the person more depressed later and more financially worse off. The individuals selling said drugs make less than minimum wage. The community gets poorer and the only viable businesses are local drug dealing. All of the money reaped leaves that community. This can be seen in Freakanomics.