There's a tape where Tony Robbins interviews economist Paul Pilzer.

Which tape is it?

There are at least two tapes where Anthony Robbins (Tony Robbins)
interviews Paul (Zane) Pilzer. At the Tony Robbins web site at:

   http://www.tonyrobbins.com/PT_List.html

you can find listings for Powertalk(TM) audio tapes where Robbins
interviews Pilzer:

Volume #15

Belief Systems: The Power to Create, The Power to Destroy (Audio) 
Interview with Paul Zane Pilzer (Audio) 
Book Summary - "Dr. Deming—The American Who Taught The Japanese About
Quality" by Rafael Aguayo

   and

Volume #24

Regeneration: A Model for Success in the 21st Century (Audio) 
Interview with Paul Pilzer (part 2 of volume 15) (Audio) 
Book Summary - "Reengineering the Corporation" by Michael Hammer 

Apparently Robbins sells sets of tapes and the cost for Powertalk(TM)
volumes 14-26 as listed at the Tony Robbins web site is listed at a
cool $195.00. See:

   http://www.tonyrobbins.com/products.html

Since the Pilzer interviews are on volumes 15 and 24 you would only
have to purchase the single set (should you wish).

How I found your answer:

Using the ever useful Google search engine at:

   ://www.google.com/

with the following terms (including all punctuation, such as quotation
marks):

   "tony robbins" and "paul pilzer"

The information I retrieved was under the heading of "Power."

Yours in finance and capitalism,
fugitive-ga

Yep, that's the ones. Well done!