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7. SRAS, LRAS, AD curves are used to analyze macroeconomic changes. Which of these three curves or lines will shift and in wh
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7)

A) Increase in oil price increases cost of production because oil is an important input in the production of many good. This will decrease short run aggregate supply, shifting the SRAS curve leftward.

B) A tax credit for small businesses inspires firms to buy new company cars, increases investment (buying new cars is investment spending for those firms). This will increase AD (AD = Consumption + investment + government spending + net export), shifting the AD curve rightward.

C) A decrease in the price of the raw materials decreases cost of production, increases SRAS. This will shift the SRAS curve rightward.

D) An increase in imports and decrease in export decreases net export (net export = export - import). Therefore AD will decrease, shifting the AD curve leftward.

Note : As per the HOMEWORKLIB RULES i answered only first four sub-parts.so please re-post the rest .

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