Given the proliferation of smartphones and tablets, mobile payments is a growing area of interest for markets—and a lucrative segment for technology companies. According to analysts, there are approximately 6 billion cellphone subscriptions across the world—meaning there are at least that many people who could potentially utilize their smartphones as portable cash registers.
"If you think of how many people who are out there that do not have cards or bank accounts, the power to include all of those and make this a much bigger market that affects a large proportion of the world's population is tremendous," Ashwin Shirvaikar, an analyst from Citi's computer service and IT consulting arm, said in an interview Wednesday on CNBC's "Power Lunch."
Citi cited emerging markets and Japan as areas where mobile payments tech is growing by leaps and bounds. According to IE Market Research, mobile payments could see $1 trillion worth of turnover by 2016.
Web-based entertainment is also a big game changer, Citi noted in its report. This week, Netflix sent tongues wagging when it revived "Arrested Development"—a defunct television series with a cult following—which fanned expectations that streaming will eventually challenge traditional TV and movie watching.
(Read More: Procera: Netflix's 'Arrested Development' a Success)
America's renewed energy production is giving rise to innovative new drilling and oil and gas technologies. Citi cited hydraulic fracturing technology as helping to lead the world's largest economy into an energy revolution that could prove extremely lucrative.
"Subsea processing equipment has the potential to be a $100 billion per annum market by the next decade," Citi analysts said.
—By CNBC's Javier David