More than half of companies with over in annual revenue used-|||-"non-traditional" monitor techniques on staff last year.-|||-Monitoring employee perfo gives firms the ability to assess how their staff are performing and-|||-interacting,which can be good for both the firm and employees themselves.A growing number of analytics-|||-companies offer this service. They gather "data exhaust"left by employees'email and instant messaging apps,-|||-and use name badges equipped with radio-frequency identific devices and microphones.These can check-|||-how much time you spend talking,your volume and tone of voice,even if you do not dominate conversations.-|||-While this may sound intrusive,exponents argue that it can also protect employees against bullyin and sexual-|||-harassment.-|||-Some of this data analysis can produce unexpected result For example,it was found that people who sat-|||-at 12-person lunch tables tended to interact,share ideas more and outperform those who regularly sat at four-|||-person tables,a fact that would probably have gone undetected without such data analysis.-|||-Over the last few years a Stockholm co-working space called Epicenter has gone much further and holds-|||-popular"chipping parties",where people can have microchips implanted in their hands.They can use the-|||-implants to access electronically-controlled or monitor how typing speed correlates with heart rate.-|||-Implanted chips may seem extreme,but it is a relatively small step from ID cards and biometrics to such-|||-devices.Questions 51 to 55 are based on the following passage.-|||-Many oppose workplace surveillance,because of the inherent dehumanizing effect it has and the relentless-|||-pressure it brings.But it's on the rise around the world as firms look to become more efficient by squeezing-|||-more productivity from their workers. More than half of companies with over in annual revenue used-|||-"non-traditional" monitor techniques on staff last year.-|||-Monitoring employee perfo gives firms the ability to assess how their staff are performing and-|||-interacting,which can be good for both the firm and employees themselves.A growing number of analytics-|||-companies offer this service. They gather "data exhaust"left by employees'email and instant messaging apps,-|||-and use name badges equipped with radio-frequency identific devices and microphones.These can check-|||-how much time you spend talking,your volume and tone of voice,even if you do not dominate conversations.-|||-While this may sound intrusive,exponents argue that it can also protect employees against bullyin and sexual-|||-harassment.-|||-Some of this data analysis can produce unexpected result For example,it was found that people who sat-|||-at 12-person lunch tables tended to interact,share ideas more and outperform those who regularly sat at four-|||-person tables,a fact that would probably have gone undetected without such data analysis.-|||-Over the last few years a Stockholm co-working space called Epicenter has gone much further and holds-|||-popular"chipping parties",where people can have microchips implanted in their hands.They can use the-|||-implants to access electronically-controlled or monitor how typing speed correlates with heart rate.-|||-Implanted chips may seem extreme,but it is a relatively small step from ID cards and biometrics to such-|||-devices.