Yep! Well summed up by Dr Ivan Misner. 

To me, it's the essence of what the Chinese call "quan xi" (關係). 

In China, "quan xi" is an approach to business based on personal relationships that heavily incorporate trust and reciprocity. 

It''s a form of strategic alliances among individuals, and it gives access to resources and information over indefinite periods of time. 

It cannot be created overnight. 

You need to earn it on the basis of interpersonal trust and interpersonal affability. 

When a "quan xi" relationship works, you can expect business, career and, hopefully, financial success.