To collect the results, researchers used state-of-the-art econometric techniques to analyse ONS data between the years 2010-2016, to produce levels of productivity in each plant of Great Britain.
A new survey shows that the proportion of people categorised as self-employed increased from just under 13% to just under 15% between 1998 and 2018.
The criticism comes after HMRC have recently lost a number of IR35 tribunal cases, and an acceptance by HMRC that the CEST tool only provides a determination in 85% of cases.
The APSCo consultation sought views on how the extension of IR35 changes into the private sector should be managed.
At the 2018 Spring Statement, Chancellor Philip Hammond announced a Treasury consultation into the future of the current mixture of coins in circulation.
The last 11 years have seen a particularly strong growth in the number of self-employed mothers, accounting for approximately one in eight contractors.
With IR35 being extended to the private sector, HMRC has released an open consultation, seeking views on how the off-payroll working rules will work from April 2020.
From 1st April 2019, any business registered for VAT will be required by law to store digital financial records and to submit their VAT returns using Making Tax Digital (MTD) compatible accounting software.