Lenovo plus Motorola was the 3rd largest producer of smartphones by volume in the world between 2011 and 2014. Since Lenovo's acquisition of Motorola Mobility, the combined global market share of Lenovo plus Motorola has fallen from 7.2% in 2014 to 3.9% in the third quarter of 2016. A number of factors have been cited as the cause of this reduced demand, including the fact that Lenovo relied heavily on carriers to sell its phones, its phones lacked strong branding and unique features to distinguish them in the competitive Chinese market where a weak economy and saturated market is slowing demand and the culture clash between a more hierarchical PC company and the need to be nimble to sell rapidly-evolving smartphones. In response to the weak sales, Lenovo announced in August 2015 that it would lay off 3,200 employees, mostly in its Motorola smartphone business.