01:44 Jul 22, 2011 

Thanks for the vote of confidence :-)
You both had me really doubting myself (and my economist client), so I checked "masa salarial" in my IMF and OECD glossaries:

IFM gives "payroll" (without further qualification) above "wage bill" - in fact, a search for "wage bill" redirects the reader to "payroll".

The two appear fairly equally throughout the OECD's (en>fr) glossary for the same (masse salariale) or similar terms in French.

I don't mean to be pedantic, just felt I had to clear my name.