💸 Inflation and Purchasing Power
A Big Mac cost about $0.49 in 1968. Today it is around $5.79. Why does money lose value, and how can you protect it?
We explore this through real cases and economic theories.
💡 What is inflation?
an economic phenomenon in which prices rise persistently and the purchasing power of money declines. If a movie ticket cost about $2.89 in 1990 and around $10.78 today, the same money buys less. If 3% annual inflation continues for 24 years, prices roughly double (on a compounding basis).
The more a central bank prints, the scarcer money becomes and the more its value falls.
When the economy booms or consumption surges, supply cannot keep up with demand and prices rise.
When oil, raw materials, or wages rise, companies pass the burden on to consumer prices.
💰 Why do you need to invest?
If deposit rates are 2% but inflation is 3%, keeping money in the bank is effectively a 1% loss every year. You need a return that beats inflation for your assets to truly grow. By U.S. CPI (BLS), prices rose about 2.4x from 1990 to 2026.
Gasoline increase
11x
1960: $0.31/gal → 2024: $3.30
Movie ticket increase
17x
1960: $0.69 → 2024: $11.51
Median new home increase
23x
1963: $18,000 → 2024: $420,300
US dollar purchasing power
-96.5%
1913 $1 = 2024 $0.035
Data sources
Each item's price is from U.S. official series — BLS CPI (Average Price series), EIA, USPS, U.S. Census Bureau & HUD, U.S. Dept. of Labor, and NCES/College Board. Per-item sources are shown at the bottom of each card. Some early-year values (before the modern series begins) are estimates, flagged in each note.
Price change index (1980 = 100)
Compare on the same basis even with different units. The steeper the line, the faster it rose.
Big Mac (McDonald's)
1 sandwich
12x
1968→2025
Source: The Economist Big Mac Index (via Statista) + McDonald's menu-price history (History.com). Early-year figures are approximate; prices vary by US location.
Gasoline (regular)
1 gallon
11x
1960→2024
Source: U.S. Energy Information Administration (EIA) annual average retail price, regular grade; cross-checked vs BLS CPI gasoline series. Includes taxes.
Whole milk
1 gallon
4x
1960→2024
Source: BLS Average Price series (Milk, Fresh, Whole, per gallon; FRED APU0000709112) via U.S. Inflation Calculator. Pre-1995 values reconstructed from the BLS half-gallon series (estimate).
Eggs (Grade A, large)
1 dozen
6x
1960→2024
Source: BLS Average Price series (Eggs, Grade A, Large, per dozen; FRED APU0000708111) via U.S. Inflation Calculator. 1960 value is an estimate (predates modern series).
White bread
1 loaf (~1 lb)
10x
1960→2024
Source: BLS Average Price series (Bread, White, Pan, per lb; FRED APU0000702111; starts 1980) via TradingEconomics, Stacker. 1960 value is an estimate.
Ground coffee
1 lb (ground roast)
2x
1980→2024
Source: BLS Average Price series (Coffee, 100%, Ground Roast, per lb; FRED APU0000717311; starts 1980) via U.S. Inflation Calculator. Per pound of ground coffee, not a cafe cup.
Movie ticket
1 admission
17x
1960→2024
Source: NATO (National Association of Theatre Owners / Cinema United) annual average admission, cross-referenced with Box Office Mojo. 2020 uses the 2019 value (COVID makes 2020 unreliable).
First-class stamp (1 oz)
1 stamp
17x
1960→2024
Source: USPS first-class rate (first ounce) in effect each year, cross-checked vs Wikipedia 'History of United States postage rates'.
Median new home price
median new home sold
23x
1963→2024
Source: U.S. Census Bureau & HUD, median sales price of new homes sold (series MSPNHSUSA). Series starts 1963; 1963 value used as the earliest point.
Average new car price
avg new vehicle
19x
1960→2024
Source: J.D. Power/NADA historical averages (1960–2000) and Kelley Blue Book / Cox Automotive average transaction price (2010+). Measure shifts ~2010, so pre-2010 values are approximate.
Federal minimum wage
per hour
7x
1960→2024
Source: U.S. Department of Labor 'History of Federal Minimum Wage Rates', cross-checked vs FRED. Rate in effect during each year; unchanged at $7.25 since July 2009.
Public 4-yr tuition (in-state)
in-state, 1 year
26x
1970→2024
Source: NCES Digest of Education Statistics + College Board 'Trends in College Pricing'. Published in-state tuition and required fees (excludes room & board), academic year beginning that year.
Coca-Cola (single serving)
1 bottle/can
20x
1960→2024
Source: decade-by-decade retail-price journalism (24/7 Wall St., GeekSpin). No official series and container size varies by era, so all values are indicative estimates.
📋 Results are based on historical data; past returns do not guarantee future returns.
📋 This service is provided for educational purposes to help you understand investing, not as investment advice.