Reduced Working Hours and Extended Operation Hours: A Profitable Change to a 6+6‐Hour Shift Model in Essilor Oy

In this article, the author discusses the implications of a 6+6‐hour model for the production economy of the Finnish Company Essilor Oy. The theory of returns to scale has been used to analyse the results of the change from one 8‐hour shift to the 6+6‐hour‐shift system. It is shown that the company Essilor attained a better production economy and increased profit by introducing a 6+6‐hour‐shift system in one of their departments. The operation time increased by 72%. The wages per month were unreduced and seven new persons were recruited.