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A Level Economics:

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You may post your issues in MCQS paper 1 here. Discussion will make it easy to understand the concept.
 
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There's an Mcq, "what does NOT cause the demand curve for a good to shift its position?" Choices: a) advertising expenditure b) consumer tastes c) the price of substitute goods d) the price of the good... And the correct answer is D. Can someone explain why is it so?
 
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If a free market is in equilibrium, price is higher/increased (w.r.t disequilibrium).. in a Command economy, price would be lower in equilibrium, right?
 
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The price of the good is the only thing that causes a movement along the demand curve, the rest cause a shift of the demand curve
 
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Ok thank you.
Another one, a country's terms of trade increased from 100 to 120?, if export prices increased by 50% what was the change in the price if the country's imports? I was thinking its (plus) 30% but the correct answer is (plus) 25%, why???
 
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There's an Mcq, "what does NOT cause the demand curve for a good to shift its position?" Choices: a) advertising expenditure b) consumer tastes c) the price of substitute goods d) the price of the good... And the correct answer is D. Can someone explain why is it so?

the price of the good causes a movement along the curve (up or down), not a shift. Shift is when the whole demand changes. For eg: changes in the tastes and fashion decreases it's demand resulting a permanent shift in the curve!
hope you get the point made!
 
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Ok thank you.
Another one, a country's terms of trade increased from 100 to 120?, if export prices increased by 50% what was the change in the price if the country's imports? I was thinking its (plus) 30% but the correct answer is (plus) 25%, why???

You will get the answer from the formula, you just have to substitute the values.
120=150/x multiply with 100.
Which is 150*100/120.
 
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