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  • "Aftershock makes a compelling argument for a chilling conclusion. Their track record demands our attention."

    Sam Stovall, Chief Investment Strategist, Standard & Poor's

  • "Given the accuracy of their first book's predictions, you have to be worried that their second book could very well be right. Be prepared and read this book."

    Philip Gross, Co-founder and former CFO, America Online

Meet the Authors

Aftershock Author

Robert Wiedemer, President


Robert A. Wiedemer is President of Aftershock Publishing and a Managing Director with Ark Financial Management, a money management firm. He is also Portfolio Manager for Ark Strategic Investments, a hedge fund. Mr. Wiedemer wrote the landmark book that predicted the current downturn in the economy in 2006, America’s Bubble Economy, published by John Wiley. As Paul Farrell, Senior Investment Columnist at Dow Jones MarketWatch recently said, “In short, America’s Bubble Economy's prediction, though ignored, was accurate.” Kiplinger’s chose it as one of the best business books of 2006.


His following book, Aftershock, was published by John Wiley in November 2009. It was chosen by Smart Money magazine as one of the five best investment books of 2009. Aftershock Second Edition was published in August 2011 and became a New York Times and Wall Street Journal Bestseller. The third edition of Aftershock was published in April 2014 and the fourth edition was released in July 2015. Mr. Wiedemer also co-wrote the Wall Street Journal bestseller The Aftershock Investor (2nd edition released in November 2013). Combined, all of Mr. Wiedemer’s books have sold nearly 1 million copies.


Aftershock has also received widespread international interest. It has become a bestseller in Korea and has been translated into Chinese and Japanese. Aftershock and America’s Bubble Economy have been the subject of articles in the major press including the Wall Street Journal, Financial Times, The Hedge Fund Journal, Euromoney, Barrons, Reuters, AP, and others.


Robert Wiedemer speaks to groups of investors, financial analysts and economists including the New York Hedge Fund Roundtable, the World Bank, various CFA societies, the Army’s Training and Doctrine Command, and the National Press Club. He is a frequent commentator on TV including CNBC and Fox Business News.


Mr. Wiedemer holds a Series 65 (Registered Investment Advisor) and an MS-Marketing from the University of Wisconsin - Madison. 


Aftershock Author

Dr. David Wiedemer, Chief Economist


David Wiedemer, PhD was the co-author of America’s Bubble Economy, the landmark book published in 2006 that accurately predicted the Great Recession and the popping of the housing, private credit, stock and consumer spending bubbles. His series of predictions were contrary to most major economists and government officials. His analysis provided the macroeconomic basis for the economic analysis and predictions contained in the book.

Mr. Wiedemer also co-wrote the New York Times bestseller Aftershock (4th edition released in July 2015). He also co-wrote the Wall Street Journal bestseller The Aftershock Investor (now in its second edition) where he again provided the economic analysis underlying their accurate financial and economic predictions.  In addition to his work with Aftershock Publishing, Mr. Wiedemer is Chief Economist for Ark Financial Management, a money management firm, and Ark Strategic Investments, a hedge fund. He provides both firms with the macroeconomic viewpoint that drives their macroeconomic investment decisions.


Mr. Wiedemer holds a PhD in economics from the University of Wisconsin - Madison and a BA from the University of Pennsylvania.

Aftershock Author

Cindy Spitzer


Cindy Spitzer was the coauthor of America’s Bubble Economy (Wiley, 2006), The Aftershock Investor (Wiley, 2012) and several editions of Aftershock (Wiley, 2009-2015). Ms. Spitzer is currently a senior investment advisor at Ark Financial Management, where she helped create the Ark Portfolio Navigation System and plays a key role in investment management and client development. 


Cindy Spitzer also provides one-time and ongoing private consulting and investment insights to individuals, businesses and groups based on the macroeconomic ideas in Aftershock. Ms. Spitzer holds a Series 65 (registered investment advisor).  She can be reached at 443-980-7367 or