Totally new book "Investment Science", by David G. Luenberger for sale

Hello:

I bought last quarter the book "Investment Science" by David G. Luenberger for the course "Investment Science" (it is also used in the MS&E;course "Advanced Investment Science") but I didn't use it at all.

The new price was for $120. I sell it for $80 (the Stanford Bookstore sells a used copy of this book for $90 but mine is completely new and cheaper).

Cheers,

Sam