In an era where wallets are getting lighter,
Economics Classes That Make a Difference in Your Choices

“If you’re new to economics and investing, I highly recommend reading this.”
★★★ Shinhan Bank Team Leader Oh Geon-young's must-read recommendation

“Keep it within reach and read one or two topics a day.
“There is no better book for an introduction to economics!”
★★★ Highly recommended by accountant Lee Jae-yong

Trump's tariff bomb, Warren Buffett's investment strategy, the future of Bitcoin...
Economic knowledge that will protect your assets!

In 2025, Trump's economic shockwaves will be targeting your wallet! The trade war and tariff bomb that began with President Trump's inauguration in January are shaking the global economy.
The US stock market is fluctuating, prices are rising, interest rates are fluctuating…
All this news is hitting your paycheck and your shopping cart hard.
In times of uncertainty, what you need is a solid economic weapon.
This book transforms complex economic terms and theories into “practical knowledge that can be applied immediately.”
From Adam Smith's "invisible hand" to the latest cryptocurrency taxation issues, this book contains 61 key economic insights to help you decipher economic news and make wise investment decisions.
Just 10 minutes a day, one lesson in economics, can change your assets and spending patterns.
From the mechanisms of price fluctuations to lessons learned from the Silicon Valley Bank crisis and Bitcoin investment strategies, complex economic news becomes easier and your investment perspective broadens!

※ Practical economic insights you will gain through this book
▶ The ability to determine how to manage your loans and investments right now based on interest rate fluctuations
▶ A way of thinking that calculates opportunity costs in all life choices, including employment, career changes, and financial planning.
▶ The Safest Asset Allocation Strategy and Inflation Protection During a Recession
▶ Predicting the Impact of Trump's Tariff Policy on Our Household's Shopping Cart Prices
▶ "Should I buy Bitcoin or not?" Key information needed for cryptocurrency investment decisions

Through this book, readers will gain a precise understanding of the impact of interest rates, exchange rates, and stock price fluctuations on their assets. They will also be able to understand the characteristics of various investment products to develop wise asset management strategies. They will also be able to predict the impact of global economic changes on the Korean economy and their daily lives.
Why is economic literacy important now? The answer is clear.
Because to survive in a rapidly changing economic environment, you need to be able to read and interpret the economy properly.

--- p.9, from “Introduction”

Today, economists study a wide range of economic phenomena driven by scarcity, from how Netflix subscription prices are set to how central banks determine interest rates.
It's interesting how humans cope with resource scarcity.
Sometimes we create complex plans and systems to ensure that resources are distributed fairly to everyone, and sometimes we leave it to the market to find a balance between supply and demand.
All economic entities, from individuals to society as a whole, strive to efficiently allocate limited resources and utilize them in the best possible way.
--- p.18, from “Infinite Desire, Finite Resources: The Birth of Economics”

To overcome these limitations, modern economists have developed various theories that take into account all the imperfect factors that affect the economy.
The new fields that emerged from this process are information economics and behavioral economics.
I have been studying how information gaps affect the economy and why humans make irrational and illogical choices.
Thanks to this, we have been able to understand economic activity and growth from a different perspective and in a broader way.
--- p.57, from “Why We Make Irrational Choices: The Birth of Behavioral Economics”

If you think about it carefully, fiat currency seems like a far-fetched idea that could only exist in science fiction novels.
This is because the currency in use today has no intrinsic value and functions solely on the basis of the agreements and promises of the people.
The only thing that guarantees the value of money is trust.
When you think of bank transfers, online bill payments, check cards, and checks, doesn't the concept of money and currency feel even stranger?
--- p.85, from “What Central Banks Do: The Law of Money Supply”

When there are many market participants, no single producer or consumer has much influence over price and transaction volume.
Because they have to compete with other producers or consumers.
However, if there is only one producer or consumer, they can exert significant influence on the price.
For example, Walmart, a large discount retailer in the United States, has monopoly power over many suppliers.
Since Walmart is the sole supplier to these suppliers, it can set its prices at will.
--- p.140, from “The Most Ideal Market: The Role Model of Perfect Competition”

Whether it's stocks, mutual funds, or exchange-traded funds, the stock market's function is ultimately to connect investors and borrowing companies.
Companies seeking investment turn to the stock market to obtain the necessary funds.
Equity financing, which involves issuing stock to raise funds, may be cheaper than debt financing, which involves borrowing money, but it can also result in a significant loss of control by giving shareholders a portion of the company's ownership.
Yet, many companies wisely use equity financing to maintain control over their companies while still obtaining the capital they need to invest and grow.
--- p.212, from "ETFs are hot these days?: The Principles of the Stock Market"

To store and trade cryptocurrencies, you need a dedicated wallet.
This wallet can be installed on electronic devices such as mobile phones or tablets, or stored in the cloud.
Creating a cryptocurrency wallet generates an encrypted key that allows you to verify your identity, access your cryptocurrency, and begin trading immediately.
Keys are divided into 'public key' and 'private key'. The public key is used to identify the address of a specific wallet, and the private key is used to access the cryptocurrency linked to the wallet and manage the assets.
--- p.228, from "Dogecoin? Ethereum?: Blockchain Technology and the Birth of Cryptocurrency"

GDP should be approached as a flow rate that measures the flow over a certain period of time, rather than as a solid brick that is piled up rigidly.
Think of a bathtub with the faucet turned on and the drain open.
The water flowing from the faucet is GDP.
The water in the bathtub represents the wealth of the country, and the water flowing out of the drain represents loss and outflow of value, such as depreciation.
As long as the outflow of wealth does not exceed GDP, the country's wealth will continue to grow.
--- p.244, from “Measuring the National Economy: What GDP Tells Us”

Demand-pull inflation occurs mostly when income or assets increase, leading to increased consumption.
A representative example is the significant increase in consumption during the COVID-19 pandemic, when the U.S. government released disaster relief funds and household debt surged.
To solve this, we need to curb excessive consumption.
Governments need to take steps to reduce demand to an appropriate level, such as raising taxes or reducing spending, or central banks need to tighten lending by raising interest rates.
However, if the government persists in its extravagant fiscal policies or the central bank continues to pump money into the market, demand-driven inflation is bound to worsen.

--- pp.301~302, from “Salaries have increased, but why are they lower than last year? The wall called inflation.”