econ final Flashcards
expenditure GDP equation
Y=C+I+G+NX
labor force and unemployment rate
LF = E+U
unemployment rate = U/LF
CPI and percent change
price basket current / price basket base x 100
percent change = new-og/og
r interest rate
nominal interest rate (i) - inflation (CPI)
fisher equation and costs of inflation
i = r - ∏expected
r = i - ∏actual
general production function
Y = Af(K,L,H,R)
explicit production function
Y=Ak^a * L^1-a
y=Ak^a
increase in savings (solow growth)
increases i curve. short term positive growth break ss, long term back to 0, change in ssconsumption ambiguous
increase in A (tech) (solow growth)
increases i and y curve. short term positive growth break ss, long term back to 0, change in ssconsumption positive
increase in n or o (pop growth or depreciation) (solow growth)
increase n+o line. short run negative growth, long run back to 0, ssconsumption goes down
numbers and steady states formulas
kss = SA/(n+o) ^1/1-a
y=Ak^a
i=sy
c=(1-s)y
marginal analysis compares what in marginal cost of production
MPL and # MCL
increase in separation rate (search and matching model of labor)
decrease value of employment (Ve curve compresses, UpH(w*) shifts right and s(1-u) shifts right (upward pressure on unemployment)
increase in wage taxes (search and matching model of labor)
decreases value of employment (Ve curve compressews, UpHw* shifts right (upward pressure on unemployment)
increase in unemployment benefits (search and matching model of labor)
increases value of unemployment (line moves up), UpHw* moves right (upward pressure on unemployment)
increase in frequency of jobs offered (search and matching model of labor)
increases value of unemployment (line moves up), UpHw* moves right (upward pressure on unemployment)
long term equilibrium unemployment rate
U= s/PH(w*)+s
p1: (two period consumer model)
y1=c1+b
p2 (two period consumer model)
y2+(1+r)b
LBC (two period consumer model)
y2+(1+r)(y1-c1)
y1 + y2/(1+r) = c1 + c2/(1+r)
increase in p1 income (two period consumer model)
increases c1, c2, y1, and b
increase in p2 income (two period consumer model)
increases c1 and c2, decreases b
substitution effect increase in r (two period consumer model)
c1 decrease c2 increase s increase
wealth effect increase in r for a borrower (two period consumer model)
c1 decrease c2 decrease s increase