Columbia subject headings:
Harvard subject headings:
Employees--Effect of technological innovations on--Mathematical models.
Employees--Training of--Mathematical models.
Industrial productivity--Measurement.
International trade--Mathematical models
Labor market--Mathematical models.
Labor productivity--Measurement.
Princeton subject headings:
Employees--Effect of technological innovations on--Mathematical models.
Employees--Training of--Mathematical models.
Industrial productivity--Measurement.
International trade--Mathematical models.
Labor market--Mathematical models.
Labor productivity--Measurement.