Startups often chase fast growth, driven by investor pressure and early demand. But research from Wharton professors Saerom (Ronnie) Lee and J. Daniel Kim shows this approach can backfire. Their study of over 38,000 U.S. startups found that companies scaling within six to 12 months of founding are 20% to 40% more likely to fail. Early job postings for sales and management roles often signal rushed scaling, fueled by short-term validation rather than a proven business model. This rush can lock startups into strategies that haven’t been properly tested or refined, resulting in wasted capital and unsustainable operations.
Instead, Lee and Kim urge founders to focus on patience and systematic experimentation. Startups that scale after four years, after testing product-market fit and refining their business model, are more likely to succeed. For entrepreneurs, hiring and expansion should follow strategy, not hype. In a tighter funding environment, the discipline to wait, test, and pivot can mean the difference between long-term growth and early collapse. As Lee puts it, entrepreneurs must “learn what not to do”—an insight that could save years of hard lessons.
