L11 Econ 1021 Chapter Notes - Chapter 8: Risk Premium, Opportunity Cost, Credit Risk

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Saving: (current income) (spending on current needs) Wealth: (the value of assets) (liabilities) Assets: anything of value that one owns: financial assets: cash, checking account, stocks, bonds, real assets: home, real estate, jewelry, cars. Liabilities: the debt one owes: student loans, credit card balances, mortgages. Flow: a measure that is defined per unit of time: ex: mary"s saving is per week. Stock: a measure that is defined at a point in time: ex: mary"s wealth is ,030 on january 1, 2015. A flow is the rate of change in a stock: bathtub analogy. 42 gallons at 7:01 pm, 44 gallons at 7:02 pm and so on. The flow of saving causes the stock of wealth to change at the same rate. Capital gains: increases in the value of existing assets. Capital losses: decreases in the value of existing assets. Change in wealth = saving + capital gains capital losses. National saving (s) s = y c g.

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