What are the moral and social incentives in sumo wrestling?

Your question is quite vague, but if you're asking for two more examples of how economic theories can be applied to social issues, here are two:

1. The "Broken Windows Theory" suggests that visible signs of disorder and misbehavior in an environment encourage further disorder and misbehavior, leading to serious crimes. This theory has been applied in various cities for urban development and crime reduction.

2. The "Prisoner's Dilemma" is a standard example of a game analyzed in game theory that shows why two completely rational individuals might not cooperate, even if it appears that it is in their best interests to do so. This has been applied in various fields like business strategy, political science, and even in understanding climate change negotiations.

Remember, these are just examples and the application of economic theories to social issues is a vast field with numerous examples.

The phenomenon described here is related to the world of sumo wrestling, where a wrestler's ranking, determined by their wins in bimonthly tournaments, influences every aspect of their life.

An interesting observation is that wrestlers with a 7-7 record in a 15-round tournament often win their final bout, which allows them to advance in ranking. This has led to speculation about the role of economic incentives, suggesting that higher-ranked wrestlers might be bribed to lose a match to help a lower-ranked wrestler advance.

However, it's also important to consider the strong moral and social incentives within the sumo community. The high stakes associated with winning or losing could motivate higher-ranked wrestlers to assist those at risk of falling back in the rankings, not just for financial gain, but also to maintain the community's balance and harmony.

This phenomenon is a complex interplay of economic, social, and moral factors within the sumo wrestling community.