MDR is a relatively new security service offering that emerged in recent years to assist the standard organization with a team of experts that provide 247 alert prioritization, investigation, and proactive threat hunting tasks that are typically beyond its in-house capabilities. ESG research from April 2019 reveals that 27% of organizations are actively pursuing an MDR project, while 11% plan to pursue MDR projects in the future. MDR providers can gain the benefit of the complete threat visibility that can otherwise be gained only by the EDR, UBA, and Deception technologies.
Source: https://thehackernews.com/2019/10/managed-detection-response.html

