There has never been a worst time to start a new business, contends Carol Roth, author of The Entrepreneur Equation .

Never before has there been so much competition, so many products and services, so much information overload and so much difficulty in finding and reaching customers, says Ms. Roth, whose book offers reality-check help for wanna-be entrepreneurs.

Should you become an entrepreneur? How best to take the plunge? Ms. Roth was online to answer your questions.

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Ms. Roth is an investment banker, business strategist and frequent media commentator on business and entrepreneurship topics. She writes a blog called "Unsolicited Business Advice."

You can read an excerpt of her book here.

Mobile readers can link to the discussion here.