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One contemporary theory of criminal behavior comes from Samuel Yochelson and Stanton Samenow, who propose that:
Consumer Surplus
The variance between what consumers are prepared and can afford to pay for a product or service and the actual amount they end up paying.
Marginal Cost
The additional cost incurred from producing one more unit of a product or service.
Two-part Tariff
A pricing strategy that involves a fixed fee in addition to a variable charge for each unit of the product consumed.
Marginal Revenue Curves
A graphical representation showing how marginal revenue varies as the quantity of output changes, commonly used by firms to make decisions about production and pricing.