In this book， we'll introduce you to the toolseconomists are using to tackle some of the world's biggest challenges， from health care reform， to climate change， to lifting people out of poverty. Of course， these tools are not just for taking on causes worthy of Nobel Prizes. Economics can also help you become a savvier consumer， successfully launch a new cell phone app， or simply make smarter decisions about how to spend your time and money. Throughout this book， we promise to ask you not just to memorize theories， but also to apply the ideas you read about to the everyday decisions you face in your own life.When people think of economics， they often think of the stock market， the unemployment rate， or media reports saying things like the People's Bank of China issues reform to improve the quoted loan prime rate of market （LPR） Although economics does include these topics， its reach is much broader.
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