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If the initial margin requirement were 60%, then stock equity = $50 × 1,000 = $50,000 and leveraged dollars (or amount borrowed) = $50,000 × (100% − 60%) = $20,000. If the maintenance margin changed to 25%, then the customer would have to maintain a net value equal to 25% of the total stock equity.
The marginal propensity to save ( MPS) is the fraction of an increase in income that is not spent and instead used for saving. It is the slope of the line plotting saving against income. [1] For example, if a household earns one extra dollar, and the marginal propensity to save is 0.35, then of that dollar, the household will spend 65 cents and ...
Chapter 10 introduces the famous 'multiplier' through an example: if the marginal propensity to consume is 90%, then 'the multiplier k is 10; and the total employment caused by (e.g.) increased public works will be ten times the employment caused by the public works themselves' (pp116f). Formally Keynes writes the multiplier as k=1/S'(Y).
In the case of a Kelly fraction higher than 1, it is theoretically advantageous to use leverage to purchase additional securities on margin. Betting example – behavioural experiment. In a study, each participant was given $25 and asked to place even-money bets on a coin that would land heads 60% of the time. Participants had 30 minutes to ...
The marginal propensity to consume is measured as the ratio of the change in consumption to the change in income, thus giving us a figure between 0 and 1. The MPC can be more than one if the subject borrowed money or dissaved to finance expenditures higher than their income. The MPC can also be less than zero if an increase in income leads to a ...
In marketing, customer lifetime value ( CLV or often CLTV ), lifetime customer value ( LCV ), or life-time value ( LTV) is a prognostication of the net profit contributed to the whole future relationship with a customer. The prediction model can have varying levels of sophistication and accuracy, ranging from a crude heuristic to the use of ...
Business portal. v. t. e. In macroeconomics, a multiplier is a factor of proportionality that measures how much an endogenous variable changes in response to a change in some exogenous variable . For example, suppose variable x changes by k units, which causes another variable y to change by M × k units. Then the multiplier is M .
This article is about the effect of spending on national income. For the multiplier effect in banking, see Fractional-reserve banking. In economics, the fiscal multiplier (not to be confused with the money multiplier) is the ratio of change in national income arising from a change in government spending. More generally, the exogenous spending ...