Start, Finance, or Grow Your Company with Your Customers' Cash
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Average rating5
Great book on various possible models to pick if you don't have access to funding right away (which is the case in Pakistan). It talks about 5 possible business models that can work in this mode which are not capital intensive (for example, you can't make a power plant like this, you need lots of capex upfront.)
Some key models discussed were: marketplaces (a la Airbnb), subscription businesses (like SaaS with monthly recurring revenue), service-to-product (think Netsol's journey to LeaseSoft), scarcity model (like Zara or Banana republic and all the Flash Sale sites), pay-in-advance models (think air ticketing, dropshipping, threadless)
The book is written by an academic but he does a good job of talked about 2 successes and 1 failure in each model and their causes.