The purpose of this paper is to give an overview of patterns of productivity progress in jute manufacturing mills in Bangladesh, as indicated by various studies by the authors and to compare these patterns with those patterns observed for manufacturing plants in developed countries. These studies are based on extensive surveys of individual mills over their life of operation which in many cases extends up to 26 years. The paper re- ports on typical productivity progress patterns in these mills (patterns which seem to differ to some extent from those in developed countries). Furthermore, the character- istics of productivity gain in the start-up phase of jute mills in Bangladesh are com- pared with those characteristics for manufacturing plants in developed countries. The article also discusses the uniformity of parameters in the start-up phase and corre- lations between them - factors that have been considerd by Baloff (1967) in his study of estimating the parameters of the start-up model for U.S. steel and airframe industries.