Hmm, well given it's a science-fiction novel, the historical information about the period is that it takes place in the future. The reason the hunger games take place every year is because there is a lack of food, so it's a way of controlling the population (I think) and because they are trying to "keep world peace" but really to control everyone. Hope this helps, the question was kind of confusing so if you could elaborate more, maybe I could help more.
Equity theory is based on the idea that individuals are motivated by fairness, and if they identify inequities in the input or output ratios of themselves and their referent group, they will seek to adjust their input to reach their perceived equity.