Gyroscopic Investing

People in developing countries most likely put 25% in gold and 25% in US dollars. How about the other 50%? Where do they put them?

Are you asking "how do people in developing countries actually invest" or "how would someone in a developing country implement a PP"?

They put it in their home. Land is everything in the developing world. Inheriting your parent's place is a big deal, especially since you probably lived there your whole life.

I'd just get US PP.

I wonder how people in poor or developing countries utilize the concept of Permanent Portfolio if they don't have a broker account to invest in SHY, TLT, GLD/IAU, VTI/VT.

IIRC Browne answered that question on the radio show.  The answer was that, if your country has a sane economy with native stock mutual funds, sovereign bonds, and bills, you buy local versions of all of those.  Browne always advocated physical gold bullion which is the same everywhere.  If your country is too small to have a diversified stock market or liquid bond market, you can implement a PP based on whichever developed country's sphere of influence you're in.

I use a mix of SHY-BWZ (cash) and VTI-VXUS (stocks) the rest is the regular TLT-IAU.
But Indices is right the most of the people invest in real state ("in bricks" as we say)