Some businesses spend all the income and live the high life - this is a major contributory factor in relationship breakdown between the tenant and the business and is a recipe for disaster.

BBC: NEWS | Programmes | Moneybox | Have Your Say: Sale and rent back

Social discovery on the other hand depends on an additional factor: our relationship network.

FORBES: Serendipity Lies At The Heart Of Business Relationships

So, perhaps there is economic incentive, especially if you can factor in customer relationship, up-selling and cross-selling benefits.

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