Categories: All - gdp - correlation - business - variability

by Remek Debski 16 years ago

513

Macroeconomics - 2HH3 - Chapter 3

The study of macroeconomics often involves an in-depth analysis of various economic variables and their interactions over time. Key areas of focus include the measurement of the business cycle and the components of Gross Domestic Product (

Macroeconomics - 2HH3 - Chapter 3

Macroeconomics - 2HH3Chapter 3Business Cycle Measurement

Key Terms

average labour productivity
total output divided by labour input
real wage
the purchasing power of the wage earned per hour worked
reverse Philips Curve
a negative correlation between a money price or rate of change inmoney price, and a measure of aggregate economic activity
Philips Curve
a positive correlation between a money price or the rate of change ina money price, and a measure of aggregate economic activity
standard deviation
the cyclical variablity in an economic time series can bemeasured by the standard deviation of the precentagedeviations from trend
a measure of variability
composite index of business leading indicatorsor index of leading indicators
a wieghted average of leading macroeconomic variables,which is sometimes used to forecast the deviations of realGDP from trend
coincident variable
an economic variable that neither leads nor lags real GDP
lagging variable
an economic variable that past real GDP helps to predict
leading variable
a economic variable that helps to predict future real GDP
perfectly negatively correlated
describes two variables that have a correlation coefficient of -1
perfectly positively correlated
describes two variables that have a correlation coefficient of 1
correlation coefficient
a measure of the degree of correlation between two variables
acyclical
describes an economic variable that is niether procyclical nor countercyclical
countercyclical
describes an economic variable that trends to be below (above) trendwhen real GDP is above (below) trend
procyclical
describes an economic variable that tends to be above (below) trendwhen real GDP is above (below) trend
scatter plot
a plot of two variables, x and y, with x measured on the horizantal axis,and y measured on the vertical axis
negative correlation
relationship between two economic time series when astraight line fit to a scatter plot of the two variables hasa negative slope
positive correlation
relationship between two economic time series when astraight line fit to a scatter plot of the two variables hasa positive slow
time series
sequential measurements of an economic variable over time
comovement
how aggregate economic variables move together over thebusiness cycle
persistent
describing an economic time series that tends to stay above(below) when it has been above (below) trend during the recentpast
recession
a series of negative deviations from trend in real GDP,culminating in a trough
boom
a series of positive deviations from trend in real GDP,culminating in a peak
frequency
the number of peaks in an economic trime series thatoccur per year
amplitute
the maximum deviation from trend in an economictime series
turning points
peaks and troughs in real GDP
trough
a relatively large negative devation from trend in realGDP
peak
a relatively large positive devation from trend in real GDP
business cycles
fluctiations about the trent in read GDP

Comovement Summary

Labour Market Variables

Nominal Variables

The Components of GDP

Comovement

Regularities in GDP Fluctuations