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Difficulty: MediumPostwar Economy, Suburbanization, and Demographics

Postwar U.S. Metropolitan Population (in millions), 1950–1970:

YearCentral CitiesSuburbs (Metropolitan areas outside central cities)
195048.435.1
196058.054.9
197063.875.6

Which of the following factors most directly contributed to the demographic shift illustrated in the table?

  1. A
    The immediate economic impact of New Deal job creation programs that relocated urban industrial workers to rural cooperatives.
  2. B
    A shift toward a laissez-faire housing policy where private developers constructed communities without federal assistance or regulation.
  3. Federal programs, such as mortgage insurance and highway construction, that lowered the cost of suburban homeownership.Answer
  4. D
    The implementation of supply-side tax cuts that reduced federal spending on infrastructure while encouraging private home construction.

Answer

Federal programs, such as mortgage insurance and highway construction, that lowered the cost of suburban homeownership.
The correct answer is correct because federal programs like FHA-backed loans, VA mortgage guarantees, and the Interstate Highway Act of 1956 dramatically lowered the financial barrier to suburban homeownership and physically connected new suburbs to central business districts, driving the suburban demographic boom.

Step-by-Step Solution

1
Analyze the table to identify the demographic trend.
The table shows that between 1950 and 1970, the suburban population grew rapidly (from 35.1 million to 75.6 million) and surpassed the population of central cities (which grew more slowly from 48.4 million to 63.8 million).
Understanding the demographic change is necessary to identify the historical causes of suburbanization.
2
Recall the historical factors and federal policies of the post-World War II era that facilitated suburbanization.
Federal policies such as the GI Bill (Servicemen's Readjustment Act of 1944) and the Federal Housing Administration (FHA) provided low-interest mortgages and down-payment assistance to veterans and middle-class families. Additionally, the Federal-Aid Highway Act of 1956 built highways that made commuting from suburbs to cities feasible.
Connecting demographic trends to specific government policies explains the structural causes of suburban growth.
3
Evaluate the options to find the one that matches these historical causes and eliminate incorrect options.
The option regarding federal mortgage insurance and highway construction is the correct cause. Other options either involve incorrect time periods (New Deal or Reagan-era supply-side economics) or ignore the critical role of federal subsidies (the laissez-faire misconception).
This determines the correct response based on chronological accuracy and historical causation.

Key Concept

Postwar Suburbanization and Demographic Shifts
Estimated Time:1m 30s
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Topics

Postwar Economy, Suburbanization, and Demographics

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