article_snippet: Warned: the UK Statistics Authority has 'ticked off' Shadow Chancellor Ed Balls for claiming the number of workers on zero-hours contracts had increased by 400,000 in recent months .
article_snippet: Shadow Chancellor Ed Balls has been ticked off by the statistics watchdog for claiming the number of workers on zero-hours contracts had increased by 400,000 in recent months.
article_snippet: Sir Andrew Dilnot, of the UK Statistics Authority, said Shadow Chancellor Ed Balls statement was incorrect, as Mr Balls's statement relied on comparing totals at two different times of year and ignored the possibility that some people could hold multiple contracts for different jobs.