Mathematics for Economists

(Greg DeLong) #1

Optimal stopping


The general iteration isαT= 0.

αt = E(max(αt+ 1 ,ξt))=

Zαt+ 1
0

αt+ 1 dx+

Z 1
αt+ 1

xdx=

= α^2 t+ 1 +

1


2



1 α^2 t+ 1




=


1


2



1 +α^2 t+ 1




.


Obviously from the constructionαt>αt+ 1 as we are always increasing
the integrand.
Is this the optimal strategy?
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