The middleman

The video is the writer to introduce the book.
https://talksat.withgoogle.com/talk/the-middleman-economy

This writer describes there are 4 types of middleman.

It is based on 2x2 matrix:
warmth vs competence

HH: partner
HL: pet
LH: predator
LL: parasite

She uses 6 chapters to describe the 6 kinds  of problems to be solved by different middleman.
Distance problem,  it is most common
Quality problem,  it is also common
Delivery problem,
Risk problem,
information overload problem,
Spiritual or ethnic problem,

But I think there will be more kinds of problems to be solved and so as to have new kinds of middleman.

Middleman can help solve the problem and play as a platform to help both sides of platform.  We can think how can we play the right role of middleman.