A survey of entrepreneurs who started companies last year shows that while virtually all did substantial preparatory research and planning, only half used that work to produce a formal business plan.

一项对去年创办公司的企业家的调查显示，尽管几乎所有人都做了大量的准备研究和计划，但只有一半人利用这些工作制定了正式的商业计划。