While there is no universally accepted definition of a recession, the term generally describes a temporary decline in economic activity. So what do recessions have in common, and what causes them? CNBC's Tom Chitty explains. ----- Subscribe to us on YouTube: http://cnb.cx/2wuoARM Subscribe to CNBC International TV on YouTube: https://cnb.cx/2NGytpz Like our Facebook page: https://www.facebook.com/cnbcinternational Follow us on Instagram: https://www.instagram.com/cnbcinternational/ Follow us on Twitter: https://twitter.com/CNBCi