Editing National Income and GDP (section)

== <span style="color: #FFFFFF;">Understanding</span> ==
National income is understood through '''Production''' and '''Expenditure'''.

'''1. The GDP Equation (The Expenditure Approach)''':
The most famous formula in economics is:
**GDP = C + I + G + (X - M)**
* It assumes that every dollar spent by someone is a dollar of income for someone else.
* If you buy a $1,000 laptop (C), the economy grew by $1,000.
* If the government builds a $1 billion bridge (G), the economy grew by $1 billion.

'''2. What GDP DOES and DOES NOT Measure''':
* '''GDP Measures''': Market transactions. If you pay a mechanic to fix your car, it adds to GDP.
* '''GDP Ignores''':
    * **The "Shadow" Economy**: Illegal activities or under-the-table work.
    * **Unpaid Work**: If you fix your own car or raise your own kids, it adds $0 to GDP.
    * **Quality of Life**: A country can have a huge GDP but have miserable, sick, or uneducated people.

'''3. Growth vs. Recession''':
* '''Economic Growth''': When Real GDP increases over time.
* '''Recession''': Traditionally defined as two consecutive quarters (6 months) of shrinking GDP.

'''PPP (Purchasing Power Parity)''': A way of adjusting GDP to account for the fact that $1 buys more in India than it does in Switzerland. It provides a more accurate comparison of "Real Wealth."
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