When to quit? An entrepreneur’s guide to pulling the plug

If you believe the pop-psych literature, perseverance is the most predictive characteristic of successful people. But isn’t knowing when to quit equally important for a satisfied and fulfilled life as an entrepreneur? The basic narrative is that anything worth doing will have major setbacks, and in the face of adversity what you must do is get up, dust yourself off, and try again. I am living proof of this axiom. Of my five to six startups (depends on how you count them), half have failed