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Finance Theory
Foundations of Finance
01Defining Finance and the Financial System02Valuation and Management: The Two Challenges03Stocks, Flows, and the Five Cash-Flow Decisions04Time, Risk, and the Six Principles of Finance05How to Learn Finance: Practice and Study HabitsProblem set0/10Problem set 20/10Practice∞
Present Value
01Information and Price: An Auction and Fannie Mae02Who Pays for the Fannie and Freddie Guarantee?03What Counts as an Asset: Patents, Secrets, Brands04An Asset as a Sequence of Dated Cashflows05The Value Operator and the Cashflow Timeline06Dates as Currencies: Building Net Present Value07Discount Factors: Market Prices for Future Dollars08A Worked Net Present Value and Its Assumptions09The Opportunity Cost of Capital and Present ValueProblem set0/10Problem set 20/10MIT problem set0/5Practice∞
01Does the Currency Change an NPV's Sign?02Moral Hazard and Contagion: Where Bailouts Stop03The NPV Rule at Work, and Choosing the Rate04The Perpetuity: Why Cash Forever Is Worth C/r05Reading the Rate Off a Perpetuity's Price06The Growing Perpetuity, and When Growth Outruns r07Building the Annuity from Two Perpetuities08The Annuity Discount Factor and Mortgage Payments09APR, the Effective Annual Rate, and CompoundingProblem set0/10Problem set 20/10MIT problem set0/13Practice∞
01Leverage: How a 10% Fall Becomes a 200% Loss02Who Absorbs the Loss: Walking Away, Rate Cuts, Bailouts03Last in Line: Chapter 11 and How Lehman's Equity Hit Zero04Inflation vs. Time Value: Wealth and the Price Index05Real Returns: Match the Discount Rate to the CashflowProblem set0/10Problem set 20/10MIT problem set0/7Practice∞

Inflation vs. Time Value: Wealth and the Price Index

Why is a dollar buying less next year a completely different claim from preferring a dollar today?


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Your summary note

    1. 1

      Impatience versus purchasing power

      Record the distinction between the preference for money now and a claim about what a dollar buys, state that inflation runs in either direction, and note the 2008 energy-price path.

    2. 2

      Wealth WtW_tWt​ paired with the price index ItI_tIt​

      State that consumption rather than a wealth total measures how well off you are, write the pairing of WtW_tWt​ with the basket price ItI_tIt​, and list what the basket holds.

    3. 3

      Cost of living It+k/It=(1+π)kI_{t+k}/I_t = (1+\pi)^kIt+k​/It​=(1+π)k

      Write the ratio of the index levels at ttt and t+kt+kt+k as a constant growth rate π\piπ per period, and record that π\piπ is only a variable name for the inflation rate.

    Attempt 1 of 2