Theoretical Workday Standardization
RCTReview
Evaluating labor demand using raw hiring flow counts misleads policy evaluations because high-turnover, short-term contract flows create massive statistical noise that masks meaningful permanent job creation.
Picture this
Counting every contract as "one hire" is like treating a one-day parking ticket the same as a five-year parking permit. Measuring the exact number of days a car is permitted to park converts all ticket types into a single, accurate measure of total time parked.
What the evidence says
Workday standardization filtered high-variance short-term contract noise (which had a standard deviation 9.9 times larger than permanent contracts), revealing a statistically significant increase of 17.5 theoretical workdays per firm for registered jobseekers (p < 0.05) and 43.8 workdays across all jobseekers in permanent contracts (p < 0.05).
- Who was studied
- N = 7,438 French firms tracked via administrative hiring declarations (DPAE) over a 6.5-month sanctuary period (where 53% of overall flows were contracts under 1 week).
- How
- Administrative data integration summing active calendar days between contract start and end dates (censoring ongoing permanent contracts at study end) to compare employment creation across contract types.
What to do
Convert disparate contract hiring flows into standardized cumulative workday metrics before evaluating the aggregate impact of employment interventions.
From the source
"This 'theoretical number of workdays' allows us to have a standardized measure of employment creation... calculating workdays allows us to compare the overall theoretical employment creation within and across contract types."
Are_Active_Labor_Market_Policies_Directed_at_Firms_Effective_Evidence.pdf