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The following is estimate of regression of expenditure on non-food items (NFD) on total expenditure (Y), Price index of non-food (PNF) and Price index of food (PF)
Ln(NFD) = -5.125 + 1.25 LN(Y) - 0. 25 LN(PNF) -0.20 LN(PF)
a. What is the elasticity of Non-food expenditure with respect to
i. total expenditure Y
ii. Price of Non-food (PNF) and
iii. Price of food (PF)?
b. What is the minimum level of total expenditure for which NFD>0, if PNF=PF=1.0
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