Marginal Propensity to Consume
Have you ever been hot on a summer day and extremely thirsty? So get your self a glass of water. The first gulp of water is the most pleasurable. Each glass of water has diminishing pleasure after a warm day.
This is called the Marginal Propensity to Consume. After a certain point, pleasure from consuming decreases at a small rate or Diminishing Returns . Playing video games is another example. They are fun until you beat the game, then playing each time decreases utility. Utility is the economic term for pleasure, and utility decreases as we do things more.


