productivity vs cost

http://www.bls.gov/opub/ted/2013/ted_20130328.htm

The figure from us gov. seems to show that productivity is inversely proportional to unit labor cost.

It is quite surprising, even if the data is from only one country for one year.

Reduced ULC might have increased capital expenditure (private fixed investment) and  subsequently labor productivity.



http://www.bls.gov/news.release/archives/prin_03212013.htm

Data from prolonged period between 1987 and 2011 shows the same inverse relation.