Helima Croft works for RBC Capital Markets. The name of the firm was misstated in an earlier version.
Barry Zigas is currently the director of housing for the Consumer Federation of America.
Greenspan was interviewed on CNBC's "Squawk Alley."
This story was revised to correct that first-quarter profit fell 6.7 percent.
This story was updated to reflect that the S&P 500 Wednesday closed at its highest since Dec. 4
The Google I/O developer conference is May 18. An earlier version misstated the date.
This version corrected that the more than 3 percent rise in share prices was at Wednesday's opening.
Reuters subsequently corrected China's dollar-denominated import figure from 13.8 percent to 7.6 percent.
This story was updated to correct that Croft is with RBC Capital Markets.
Ted Cruz carried the southeastern portion of Wisconsin. An earlier version misstated that fact.