May 30 (Bloomberg) -- David Kotok, chairman and chief investment officer of Cumberland Advisors, discusses his new book "From Bear to Bulls with ETFs." Kotok speaks with Bloomberg's Carol Massar and Michael McKee on "Bloomberg On the Economy." (Source: Bloomberg)

June 7 (Bloomberg) -- Robert Sinche, global head of foreign exchange strategy at Royal Bank of Scotland Plc, and Doug Borthwick, head of foreign exchange trading at Faros Trading LLC, discuss the possibility of a Greek exit from the euro zone and what it would mean for global currencies. Sinche and Borthwick speak with Bloomberg's Scarlet Fu and Josh Lipton on "Bloomberg On the Economy." (Source: Bloomberg)

June 6 (Bloomberg) -- Michael Spence, professor of economics at New York University's Stern School of Business and author of "The Last Convergence," says progress in Spain is absolutely critical to solving the euro crisis. Spence speaks with Bloomberg's Scarlet Fu and Josh Lipton on "Bloomberg On the Economy." (Source: Bloomberg)

June 5 (Bloomberg) -- Peter Tchir, founder of TF Market Advisors, Chris Whalen, senior managing director at Tangent Capital Partners LLC, and Josh Rosner, managing director and bank analyst at Graham Fisher & Co. discuss financial stocks and the current regulatory environment. They speak with Bloomberg's Carol Massar and Michael McKee on "Bloomberg On the Economy." (Source: Bloomberg)

June 11 (Bloomberg) -- Nicholas Economides, professor of economics at New York University's Stern School of Business, discusses Greek elections on June 17. Economides speaks with Bloomberg's Carol Massar and Michael McKee on "Bloomberg On the Economy." (Source: Bloomberg)

June 7 (Bloomberg) -- Erik Nielsen, global chief economist at UniCredit Bank AG, says he is optimistic about Greece staying in the euro zone. Nielsen speaks with Bloomberg's Scarlet Fu and Josh Lipton on "Bloomberg On the Economy." (Source: Bloomberg)

June 15 (Bloomberg) -- Vince Farrell, retired chief investment officer at Ticonderoga Securities LLC, says despite low interest rates, the stock market is discounting prices because it is taking many risks into account. Farrell speaks with Bloomberg's Carol Massar and Richard Yamarone on "Bloomberg On the Economy." (Source: Bloomberg)

June 13 (Bloomberg) -- Robert Gordon, professor of economics at Northwestern University, says the effect of innovation on quality of life is diminishing and he discusses how this will affect the future growth of the U.S. economy. Gordon speaks with Bloomberg's Carol Massar and Michael McKee on "Bloomberg On the Economy." (Source: Bloomberg)

June 12 (Bloomberg) -- John Mauldin, president of Millennium Wave Advisors, says the state of the euro-zone economy is uncertain. Joe Saluzzi, co-head of equity trading at Themis Trading LLC, joins Mauldin to discuss his new book "Broken Markets: How High Frequency Trading and Predatory Practices on Wall Street Are Destroying Investor Confidence and Your Portfolio." Mauldin and Saluzzi speak with Bloomberg's Carol Massar and Michael McKee on "Bloomberg On the Economy." (Source: Bloomberg)

June 18 (Bloomberg) -- Bill Blain, strategist at Newedge UK Financial Ltd., says Greece will be an ongoing economic problem for the European Union, but the expectation that the European Central Bank will intervene is keeping markets in check. Mayer speaks with Bloomberg's Carol Massar and Michael McKee on "Bloomberg On the Economy." (Source: Bloomberg)

June 15 (Bloomberg) -- Jim Rogers, chairman of Rogers Holdings, says Greece and Spain should be allowed to fail and predicts a recession in 2013. Rogers speaks with Bloomberg's Carol Massar and Michael McKee on "Bloomberg On the Economy." (Source: Bloomberg)

June 15 (Bloomberg) -- James Hamilton, professor of economics at the University of California San Diego, discusses the European economy and says that Greece will have to abandon the euro. Hamilton speaks with Bloomberg's Carol Massar and Richard Yamarone on "Bloomberg On the Economy." (Source: Bloomberg)