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The state economy is connected to the national economy, as they are what makes up the GDP. Individually, states can vary depending on the amount of GDP they have, as the may have different natural resources, influx in the amount of population a state contains, as well as difference in the sectors they focus their market on. The amount of GDP, which is calculated by as Gross Domestic Product, which calculates goods and services created per time used and amount of people. The higher the GDP, the better off the average person in their lifestyle, as well as the choices in which they can spend their money on. The national economy then takes each individual state's GDP and essentially put them together. The national economy can be greatly inflated, again because of the influx in the GDP per state. Some states can have a high GDP, while others are in the lower quartile. However, one thing is for certain, which is that, when each state economy is combined, it creates the GDP. The individual units within the economy (states) are what creates the economy (country).
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