3 ms·
Prepare to be surprised: http://www.nber.org/digest/jul06/w11895.html http://www.nber.org/digest/jul06/w11895.html
by harryh 12y ago
Prepare to be surprised:
http://www.nber.org/digest/jul06/w11895.html http://www.nber.org/digest/jul06/w11895.html
- geographomics 12y agoInteresting paper, thanks for the link. However, I do wonder to what extent the extra hours are voluntary, and if this definition relates to working harder (rather than longer).