macro ch 11
CPI overstates inflation
Because consumers can sometimes substitute cheaper goods for those that have risen in price, ______
Suppose the typical consumer buys more bananas than oranges. In fixing the basket of goods and services for the purpose of calculating the consumer price index, the Bureau of Labor Statistics
places more weight on the price of bananas than on the price of oranges; the weights of the two prices are determined by surveying consumers.
what does it mean if the real interest rate is 5 percent
that the purchasing power of a deposit has grown 5 percent
find the prices
the bls collects data on the price of all the goods in the basket
real interest rate is used to
correct inflation
real interest rate
corrected for inflation rate of growth in purchasing power of a deposit or debt
chose a base year and compute the cpi
cost of basket of goods and services in the current year divided by the cost in the base year times 100 current year/ base year x 100
cola
cost of living adjustment
cpi is used to make
cost of living adjustments and to correct economic variables for effects of inflation
When the value of the dollar declines
cost of living increases
who uses a fixed basket
cpi gdp deflator uses a basket of currently produced goods and services this matters if diff prices are changing by different amounts
if price of domestically produced power tools increases then
cpi and deflator will both increase
increase of price of Toyota made in Japan effects
cpi bc its bought by consumers in us but doesn't effect gdp deflator
imported consumer goods is included in
cpi but not gdp deflator
whats included in the cpi basket
food housing apparel transportation medical care recreation education and communication
2 differences of cpi and gdp deflator
gdp deflator measures the prices of all goods but cpi measures only goods and services bought by consumers gdp deflator includes only goods produced domestically bc imported goods don't add to gdp
3 largest categories of consumer spending in basket of goods for consumer price index
housing, transportation, food and beverages
unmeasured quality change least severe
if quality goes down and becomes more expensive bc then a lot of ppl will not buy
how do u correct variables for inflation
use cpi
computes the baskets cost
use the prices to compute the total cost of the basket
is consumer price index a useful measure for cost of living
useful but not perfect
what happens when new goods are introduced
variety is increased so consumers find products that more closely meet their needs so dollars become more valuable
substitution effect
when one good remains constant and another rises when two goods rise the same amount
do cpi and gdp move together
yes
does cpi miss the increase of value of dollar
yes
does cpi miss substitution bias
yes bc it uses a fixed basket of goods
does BLS try to account for quality changes
yes but it probably misses some bc quality is hard to measure
does cpi change w quality changes
yes if bLS precisely adjusts it
nominal interest rate
interest rate not corrected for inflation rate of growth in the dollar value of a deposit or debt
changes in the quality of a good can
lead to either an increase or a decrease in the value of a dollar depending on if quality goes up and down
consumer price index
measure of overall prices measure of overall cost of goods and services bought by a typical consumer
cpi is calculated
monthly
substitution bias
over time, some prices rise faster than others consumers substitute toward goods that become cheaper, making price changes less severe
by not taking into account the possibility of consumer substitution, the CPI....
overstates the cost of living
compute the inflation rate
percentage change in cpi from preceding period cpi this year- cpi last year/ cpi last year
cpi overstates inflation by
.5 percent
consumer price index is computed and reported by
Bureau of labor statistics
Fix the basket
The Bureau of Labor Statistics (BLS) surveys consumers to determine what's in the typical consumer's "shopping basket."
indexation
a dollar amount is indexed for inflation if it is automatically corrected for inflation by law or in a contract
When the relative price of a good increases, consumers respond by buying
a smaller quantity of that good and a larger quantity of substitutes for that good.
inflation makes it hard to
compare dollar amounts from different times
inflation rate is calculated by
determining the percentage increase in the price index from the preceding period
the 2 measures of inflation
gdp deflator and cpi
increase of price of goods bought by firms or gov will show up in
gdp deflator but not cpi
a decrease in the price of domestically produced industrial robots will be reflected in
gdp deflator but not the cpi bc cpi is what consumers typically buy
capital goods are included in
gdp deflator if produced domestically but not cpi
if quality of a good goes down and price stays same then value of a dollar
goes down and cost of living increases
cpi basket is mostly
housing
unmeasured quality change most severe
if quality improves and price goes down
unmeasured quality change
improvements in quality of goods increases the value of each dollar
cpi overstates
increases in cost of living
is cpi a good measure of the cost of living
no because of substitution bias introduction of new goods unmeasured changes in quality
how to calculate real interest rate
nominal interest rate - inflation rate
economys inflation rate is the
percentage change in the price level from the previous period
if quality goes down and price stays same...
price stays same technically so you are paying more so CPI goes up
cpi is tied to
social security payments
An increase in the price of Irish whiskey imported into the United States will be reflected in
the U.S. CPI, but not the U.S. GDP deflator..
consumer price index is a measure of
the cost of living
what does it mean if nominal interest rate is 5 percent
the growth of the dollar value raised by 5 percent
increase in CPI automatically determines
- The COLA in many multi-year labor contracts. - Adjustments in Social Security payments and federal income tax brackets.
5 steps of calculating cpi
1. fix the basket 2. find the prices 3. compute the baskets cost 4. chose a base year and compute the cpi 5. compute the inflation rate