Marco Hafner und Research Person-Info 

( Ich bin Marco Hafner)
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Starting school later could add billions to economy - BizwomenThe Business Journals

www.bizjournals.com
— Marco Hafner, research leader at the RAND Corp. and lead author of the study, told Business Insider that school officials are concerned with ... › news

Employers urged to let staff 'rest' during working day - BBC News

www.bbc.co.uk
· ... show up to work; and presenteeism, when people show up but are working at suboptimal levels", according to Rand researcher Marco Hafner.

Lack of sleep costing US economy up to $411 billion per year

medicalxpress.com
Marco Hafner, a research leader at RAND Europe and the report's main author, says: "Our study shows that the effects from a lack of sleep are massive. Sleep deprivation not only influences an individual's health and wellbeing but has a significant impact on a nation's economy, with lower productivity levels ...

Employers urged to let staff 'rest' during working day - BBC NewsBBC

www.bbc.com
— ... show up to work; and presenteeism, when people show up but are working at suboptimal levels", according to Rand researcher Marco Hafner. › news › bu...
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