Answer:
1. Deflation
-10%
2. In year 1 - 8 baskets
In year 2 - 8.9 baskets
3. The value of money increases
Explanation:
Deflation is a fall in general price levels. The price fell from $10 to $9. It indicates deflation has occured.
Inflation is a rise in price level.
Annual rate = (current year price - previous year price ) / previous year price
(9 - 10) / 10 = -0.1 = -10%
The annual change is negative because price level fell.
$80 would buy $80/$10 = 8 baskets of goods in year 1
$80 Will buy $80/$9 = 8.9 baskets of goods in year 2.
A fall in price levels increases the value of money because less money can buy the same basket of goods. Therefore, the purchasing power of money increases.