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Entrepreneurs shouldn’t start their business with a plan

Writing a business plan within the first six months of launching a business is worthless, and even counterproductive, new research from the University of Edinburgh Business School suggests.

Professor Francis Greene and his co-author found that the key to starting a successful business is being flexible and responsive to opportunities – not having a rigid plan.

The researchers discovered that the most successful entrepreneurs are those that write plans between six to 12 months into starting their business.

“Our research shows that writing a plan first is a really bad idea. It is much better to wait, not to devote too much time to writing it, and, crucially, to synchronise the plan with other key start-up activities,” says Greene.

“Writing a plan between six months to a year increased the probability of venture viability success by 8% – but writing one earlier or later than this proved to have no distinguishable impact on future success.”

Entrepreneurs often have to adapt their business dramatically once it becomes clear what their target market actually is, meaning a plan too early is often just a waste of valuable time.

When it came to writing the plan, the optimal time to spend on it was found to be three months. This increased the chances of creating a viable venture by 12%. Spending any longer than this was futile, mostly because the information used to inform the plan loses its currency.

These results come from studying over 1,000 would-be US entrepreneurs. The researchers charted the entrepreneurs’ attempts to create a viable new venture over a six-year period, from 2005 to 2011.

For more information, a copy of the paper, or to speak to Professor Greene, contact Kate Mowbray at BlueSky PR on or call +44 (0)1582 7979 57

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