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On continuity of multiple-output cost and distance functions
Russell, R. Robert, (1985)
Economic performance in the public sector : a study of the production structure of tax administration at the Internal Revenue Service
Woodbury, Diane F., (1987)
An adjustment cost model of long-term employment
Nakamura, Shinichiro, (1991)
Demographic transition and economic growth
Lehmijoki, Ulla, (2003)
Demographic transition in the Ramsey model : do country-specific features matter?
Lehmijoki, Ulla, (2004)
Production technology and dual theory of firms
Lehmijoki, Ulla, (1981)