What is Purchasing Power?
The purchasing power of a currency is the amount of goods and services that can be bought with one unit of the currency.
For example, one U.S. dollar could buy 10 bottles of beer in 1933. Today, it’s the cost of a small McDonald’s coffee. In other words, the purchasing power of the dollar—its value in terms of what it can buy—has decreased over time as price levels have risen.
Tracking the Purchasing Power of the Dollar
In 1913, the Federal Reserve Act granted Federal Reserve banks the ability to manage the money supply in order to ensure economic stability. Back then, a dollar could buy 30 Hershey’s chocolate bars.
As more dollars came into circulation, average prices of goods and services increased while the purchasing power of the dollar fell. By 1929, the value of the Consumer Price Index (CPI) was 73% higher than in 1913, but a dollar was now enough only for 10 rolls of toilet paper.
|Year||Event||Purchasing Power of $1||What a Dollar Buys|
|1913||Creation of the Federal Reserve System||$26.14||30 Hershey’s chocolate bars|
|1929||Stock market crash||$15.14||10 rolls of toilet paper|
|1933||Gold possession criminalized||$19.91||10 bottles of beer|
|1944||Bretton Woods agreement||$14.71||20 bottles of Coca-Cola|
|1953||End of the Korean War||$9.69||10 bags of pretzels|
|1964||Escalation of the Vietnam War||$8.35||1 drive-in movie ticket|
|1971||End of the gold standard||$6.39||17 oranges|
|1987||"Black Monday" stock market crash||$2.28||2 boxes of crayons|
|1997||Asian financial crisis||$1.61||4 grapefruits|
|2008||Global Financial crisis||$1.20||2 lemons|
|2020||COVID-19 pandemic||$1.00||1 McDonald’s coffee|
Between 1929-1933, the purchasing power of the dollar actually increased due to deflation and a 31% contraction in money supply before eventually declining again. Fast forward to 1944 and the U.S. dollar, fixed to gold at a rate of $35/oz, became the world’s reserve currency under the Bretton Woods agreement.
Meanwhile, the U.S. increased its money supply in order to finance the deficits of World War II followed by the Korean war and the Vietnam war. Hence, the buying power of the dollar reduced from 20 bottles of Coca-Cola in 1944 to a drive-in movie ticket in 1964.
By the late 1960s, the number of dollars in circulation was too high to be backed by U.S. gold reserves. President Nixon ceased direct convertibility of U.S. dollars to gold in 1971. This ended both the gold standard and the limit on the amount of currency that could be printed.
More Dollars in the System
Money supply (M2) in the U.S. has skyrocketed over the last two decades, up from $4.6 trillion in 2000 to $19.5 trillion in 2021.
The effects of the rise in money supply were amplified by the financial crisis of 2008 and more recently by the COVID-19 pandemic. In fact, around 20% of all U.S. dollars in the money supply, $3.4 trillion, were created in 2020 alone.
How will the purchasing power of the dollar evolve going forward?
Chart: 30 Years of Wildfires in America
Here’s a look at the number of wildfires in America that have occurred each year since 1990, and the acres of forest land scorched during that period.
30 Years of Wildfires in America
This summer, record-breaking droughts and relentless heat waves have fueled disastrous wildfires across the United States. It’s gotten so bad, the state of California has decided to shut down all national forests for two weeks to stop the spread.
But how disastrous has this year been compared to previous years? This graphic gives a historical look at the number of wildfires in America that have occurred each year since 1990, and the acres of forest land scorched during that period.
Total Wildland Fires and Acres from 1990 to 2020
In the U.S., an average of 70,000 wildfires burn through 5.8 million acres of land each year. But some years have been worse than others.
|Year||# of Fires||# of Acres Burned|
*note: 2021 figures as of September 3, 2021
One particularly bad year was 2006, which had over 96,000 fires and destroyed 9.9 million acres of land across the country. It was the year of the Esperanza Fire in California, which burned 40,000 acres and cost $9 million in damages.
2015 was also a devastating year, with over 10.1 million acres destroyed across the country–the worst year on record, in terms of acres burned.
Climate Change’s Role in Wildfires
Wildfires are only expected to worsen in the near future since warmer temperatures and drier climates allow the fires to grow quickly and intensely.
We’re already starting to see climate change impact the wildfire season. For instance, autumn is usually peak wildfire season for California, but this year, one of the largest fires on record started in mid-July, and is still burning as of the date of publication.
Editor’s note, September 20, 2021: In the post above, we said that California closed downed down all national parks for two weeks, starting August 31st. In fact, they closed down all national forests.
Visualizing the Typical Atlantic Hurricane Season
While the Atlantic hurricane season runs from June to late November, about 85% of activity happens between August, September, and October.
Explained: The Typical Atlantic Hurricane Season
On August 29, 2021, Hurricane Ida hurled into the state of Louisiana at rapid speed. With winds of 150 mph, preliminary reports believe it’s the fifth strongest hurricane to ever hit the U.S. mainland.
As research shows, Hurricane Ida’s impact hit right at the peak of the Atlantic hurricane season. Here’s a brief explainer on the basics of hurricanes, how storms are classified, and what a typical storm season looks like in the Atlantic Basin.
Let’s dive in.
Classifying a Storm
Hurricanes are intense tropical storms that are classified by their wind speed. What’s the difference between a hurricane, a typhoon, and a cyclone? They’re essentially the same thing, but are named differently based on their location:
- Hurricane is used for storms that formed in the North Atlantic, central North Pacific, and eastern North Pacific (impacting countries like the U.S.)
- Typhoon is used for storms in the Northwest Pacific (impacting countries like Japan)
- Tropical Cyclone is used for storms in the South Pacific and Indian Ocean (impacting countries like Fiji and India)
Since we’re focusing on the Atlantic, we’ll be using the term hurricane and/or storm throughout the rest of this article.
A storm needs to reach a certain wind speed before it gets classified as a hurricane. Storms with wind speeds of:
- <73 mph are considered Tropical Storms
- 74-110 mph winds are considered Hurricanes
- 111 mph+ winds are considered Major Hurricanes
Breaking Down the Atlantic Hurricane Season
Generally, Hurricanes form in the warm ocean waters in the central Atlantic and Gulf of Mexico, following westward trade winds and curving up towards the North American mainland. Hurricanes are formed when these specific elements come into play:
- A pre-existing weather disturbance such as a tropical wave
- Water at least 80ºF (27ºC) with a depth of at least 50 meters
- Thunderstorm activity
- Low wind shear (too much wind can remove the heat and moisture hurricanes use for fuel)
The Atlantic hurricane season technically lasts six months, beginning on June 1st and ending in late November. However, 85% of activity happens between August, September, and October.
Each subregion in the Atlantic has its own unique climatology, which means peak seasons can vary from place to place—for example, south Florida sees the most hurricanes in October, while the entire Atlantic Basin’s peak season is early-to-mid September.
Climate Change and Hurricanes
According to the Center of Climate Change and Energy Solutions, it’s unclear whether climate change will increase the number of hurricanes per year.
However, research indicates that warmer weather and high ocean temperatures will most likely lead to more intense storms, ultimately causing more damage and devastation.
» Want to learn more about climate change? Here’s an article on The Paris Agreement: Is The World’s Climate Action Plan on Track?
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