Mathematics for Economists

(Greg DeLong) #1

Dynamic programming


The value of the goal function is

VT(t+ 1 )(w)=

r w

∑tn+=^10 kn

+


s t


n= 0

kn

s
k




w w
∑tn+=^10 kn




=


=


p
w(q^1
∑tn+=^10 kn

+


s
t


n= 0

kn

s
k∑

t+ 1
n= 0 kn^1
∑tn+=^10 kn

)=


=


p
w(q^1
∑tn+=^10 kn

+


s
t


n= 0

kn

s
k∑

t+ 1
n= 1 kn
∑tn+=^10 kn

)=


=


p
w(q^1
∑tn+=^10 kn

+


s
t+ 1


n= 1

kn

s
∑tn+=^11 kn
∑tn+=^10 kn

)=


p
wq^1
∑tn+=^10 kn

( 1 +


t+ 1


n= 1

kn)=

p
w

s
t+ 1


n= 0

kn.
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