National Labour Office – Seasonal adjustment of employment data


We developed and implemented a time series seasonal adjustment solution for the Hungarian National Labor Office.

This included

  • a feasibility study for a seasonal adjustment system
  • developing a Windows interface for the industry standard X-11 ARIMA/88 program
  • preparing and integrating a new module in the X-11-ARIMA program for ARIMA model identification, parameter estimation and time series forecasting
  • developing an intervention analysis module of the X-11-ARIMA program
  • database development for the data of registered unemployed
  • deployment of the system for official use
  • operation and maintenance of the seasonal adjustment software

Seasonal adjustment