TVM & Economics Flashcards
Nominal and Effective Interest Rates
Nominal Rates: a stated or reported rate which does not consider compounding within the annual period
Effective Rates: an annualized rate that considers the frequency by which interest is compounded within a year
Real interest rate
(1 + nominal rate) = (1 + real interest rate) (1 + inflation rate)
VERY IMPORTANT: Do not simply subtract inflation from a nominal rate on your exams. That will give you the wrong answer. You must use this equation.
Ordinary annuity vs annuity due
Ordinary Annuity: a finite series of periodic cash flows where cash flow (incoming or outgoing) occurs at the end of the period
Annuity Due: a finite series of periodic cash flows in which the cash flow (incoming or outgoing) occurs immediately
Internal Rate of Return
also called the effective interest rate;
- IRR is a dollar weighted return;
- IRR is the discount rate at which the net present value of all cash flows equal zero;
- IRR is the discount rate at which present value of all future cash flows is equal to the initial investment or cash outlay (i.e., at which the investment breaks even)
Classical Economics
Weakness
Adam Smith
Supply creates its own demand
This school cannot explain a prolonged depression as any declines in aggregate demand would/should be temporary and self correcting
Utility function
the perception that something
will satisfy a need or desire
Marginal utility
concept that value increases for each unit of consumption up to a point at which value begins decreasing for each additional unit consumed an important concept to grasp
Austrian School of Economic Thought
- This school is similar to neoclassical but considers the role of the money supply and government actions.
- Government intervention may cause a boom and bust cycle.
- Friedrich (F.A.) Hayek a pioneer of Austrian economic theory.
Who was John Maynard Keynes?
Keynes (1883 - 1946) was a British economist known for his work in macroeconomic theory and business cycles. Keynes refuted neoclassical economics theories that suggested free market forces would effectively correct or manage swings in cycles and unemployment.
Key Economic Principles of Keynes
Keynesian economics theory suggests that in the short run, economic productivity is highly impacted by aggregate demand (spending) and this demand is not equal to the capacity of an economy. Especially in times of recession, the economy is influenced by myriad factors that can cause economic and financial disruptions. Hence, government intervention is necessary to correct these short run inefficiencies.
Very low interest rates would not stimulate the economy because confidence would be too low. Government should intervene in a crisis, running a deficit.
Criticism of Keynesian economics theory
–Government debt could get out of control.
–Expansionary policy may cause the economy to grow too fast, resulting in inflation and other ills.
–It takes time for fiscal policies to work, so they may be ill
timed for a short term crisis.
Who was Milton Friedman?
Friedman (1912-2006) was a U.S. economist, statistician and scholar who taught at the University of Chicago. Freidman is known for his work on monetary history and models, consumption, and stabilization policy. Freidman won the Nobel Prize in Economics in 1976.
Key Economic Principles Milton Friedman
Friedman ultimately opposed Keynesian theories, supported monetarism and opposed the creation of the Federal Reserve. Friedman believed in letting free markets operate with minimal intervention from the government and that small, incremental expansion of the money supply was optimal.
Monetarism
Monetarists contend that inflation is a function of how much money a government prints. Advocate for a steady increase in the money supply and a limited role of government.
Those following the monetarist school of thought object to the Keynesian approach because Keynesian theory:
–does not consider the role of the money supply.
–is not logical in light of utility maximizing market participants.
–ignores the long term cost of government intervention.
–does not consider the unpredictability of the timing of fiscal policy changes on the economy.
Elasticity
The ratio of the percentage change in the quantity to the percentage change in the price.
Own price elasticity
(% change in quantity demanded)/(the % change in price)