In 1992, Andrew left a management career at Pepsi-Cola in California to teach finance in Thailand and has not stopped teaching since. In 1993, he found his life calling as a financial analyst, a job for which he was eventually voted #1 in Thailand. The last decade of his 20-year career in investment banking was as a head of research leading teams of financial analysts.

During that time, he co-founded CoffeeWORKS, Thailand’s leading B2B specialty coffee roaster, and served as president of CFA Society Thailand. Andrew now runs A. Stotz Investment Research, which provides research and research tools for institutions and high-net-worth investors; as well, they help CEOs make their companies financially world-class.

Andrew created the Valuation Master Class, the world’s #1 online practical valuation course. He is the host of My Worst Investment Ever podcast, the #1 risk-management podcast that helps future generations reduce their investment risks by learning through the stories of others.

Andrew has authored four books: Transform Your Business with Dr. Deming’s 14 Points, How to Start Building Your Wealth Investing in the Stock Market, My Worst Investment Ever, and 9 Valuation Mistakes and How to Avoid Them.

He has also created four online courses and communities: Become a Great Presenter and Increase Your Influence, How to Start Building Your Wealth Investing in the Stock Market, Transform Your Business with Dr. Deming's 14 Points, and the Valuation Master Class.

He holds a Bachelor of Science in finance and an MBA from California State University and earned his Ph.D. in finance at the University of Science and Technology of China. Andrew lives in Bangkok with his 81-year-old mother, who will attest that he remains an analyst at heart!