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The income elasticity of demand measures the relationship between a change in quantity demanded and a change in income. The formula is:

(Percentage change in quantity demanded of good x) divid...

-"Leur" is used when the possesed object/person is singular, but the posessor is plural.
example 1: Leur amie est belle. "Their friend is beautiful"            (p...

COD is complement d` object direct, while COI is complement d`object indirect.
COD:
-it is the word that responds to the questions: qui (who) and quoi (what)
-example 1: J`...

1) The availability of substitutes: The greater the number of substitutes, the more elastic the good. As consumers can easily switch to consuming other goods if the price of one good rises.

2)...

Macroeconomics is the study of aggregate behaviour of the economy. The main macroeconomic variables include output, employment, inflatio...