And yet compared to those European countries, the US experiences significantly higher GDP per capita. Doing work and getting paid for it hardly seems like it's hurting the economy. http://en.wikipedia.org/wiki/List_of_countries_by_GDP_%28PPP... As to the studies cited in the article I would point to the OECD labor productivity statistics which, in the aggregate, seem to disagree. http://stats.oecd.org/Index.aspx?Data…
This isn't surprising considering the water cooler based work culture in the US. This benefits no one, but since there are almost no laws protecting workers, most workers have no choice but to comply or be fired. Then, of course, you have the people that do it intentionally, especially in the software industry, as a badge of honor or because delusional thinking makes them seem productive when they're actually less productive. The ones who can take vacation and won't. Mixing the desperate former and insane latter is exactly what most US companies strive for as their ideal work culture.
What the article overlooks is the unemployment caused by overtime. Two people working at 60 hours are roughly equivalent to one 40 hour a week job taken out of the economy--though obviously, the quality is much less than having a dedicated third person working. This isn't true for all jobs, just most.