House of Debt Book Summary - House of Debt Book explained in key points

House of Debt summary

Atif Mian and Amir Sufi

How They (and You) Caused the Great Recession, and How We Can Prevent It from Happening Again

4.1 (12 ratings)
15 mins
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    House of Debt
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    Severe recessions are caused by a huge build-up of consumer debt, followed a large drop in household spending.

    What causes severe recessions? Some economists and analysts think they’re triggered by natural or political disasters. Others think these economic crises arise when irrational beliefs infect public consciousness.

    But this is rarely true. Events like the Great Recession are, in fact, caused by high household debt.

    From 2000 to 2007, US household debt essentially doubled in size, reaching $14 trillion. Likewise, the ratio of debt owed to income earned also jumped to an unprecedented level, from 1.4 to 2.1.

    Similarly, household debt was also the key factor during the Great Depression. In the 1920s, the ratio of consumer debt to income more than doubled, while urban mortgage debt tripled.

    These large debt loads cause severe consumer spending cuts, and intensify the harsh effects of a subsequent recession.

    In fact, there’s a clear correlation between the amount of household debt before a recession and the amount of spending cuts observed during the downturn.

    This was borne out by multiple studies showing that across Europe and Asia, increases in household debt in the decade leading up to the recession correlated to declines in spending after 2007.

    For example, Ireland and Denmark both had greater jumps in household debt than the United States, and also more severe cuts in household spending.

    Thus we can predict the severity of a recession by looking at data about consumer debt, and gauging likely cuts in consumer spending.

    As we’ll see, these household debt increases are devastating to the economy, because without these elevated levels of debt, banking-crisis recessions are unexceptional. In fact, banking-crisis recessions with low levels of private debt are similar to normal recessions.

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    What is House of Debt about?

    When we bailed out the banks during the Great Recession, we didn’t actually address the real factors that caused the economic downturn. The actual problem lay with excessive mortgage lending to those who couldn’t afford it, which led to heavy debts and, eventually, huge collapses in consumer spending. To avoid the consequences of this boom-and-bust cycle in the future, the authors propose new ways of restructuring debt and stimulating the economy.

    Best quote from House of Debt

    If it werent for the Great Recession, the income of the United States in 2012 would have been higher by $2 trillion, around $17,000 per household.

    —Atif Mian and Amir Sufi
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    Who should read House of Debt?

    • Anyone who wants to know about the vulnerabilities of our financial system – booms, bubbles and busts
    • Anyone who wants to understand the mortgage industry
    • Anyone who wants to buy a house
    • Anyone who’s interested in macroeconomic theory and the Great Recession

    About the Author

    Atif Mian is an economics professor at Princeton University and director of the Julis-Rabinowitz Center for Public Policy and Finance.

    Amir Sufi is a finance professor at University of Chicago and a researcher at the National Bureau of Economic Research.

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