When releasing a new version of durable product, firm aims to attract customers as well persuade its existing customer base upgrade. This is commonly achieved through rollover strategy, which comprises the price product decision discontinue sale (solo rollover) or sell at discounted (dual rollover). In this study, we argue that timing release an important—but overlooked—third lever in design su...

This paper deals with a continuous-time model of a production and maintenance system whose performance deteriorates over time. The problem of adaptive control of a production-maintenance system with unknown deterioration rate is presented. Using a feedback the scheduled production rate, preventive maintenance rate, and updating rule of deterioration and obsolescence rates will be derived.

THE1974 ARTICLE BY Line and Sandison entitled “ ‘Obsolescence’ and Changes in the Use of Literature with Time” was highly critical of many assumptions about obsolescence and of the methodology and conclusions of much research on the topic. It placed emphasis on the distinction between synchronous and diachronous studies and on the need to correct for the size of the literature cited or used. Si...

The integration of Surplus Asset Management (SAM) with the circular economy (CE) provides a solution to optimize use resources, assets, and equipment throughout their life cycle, enabling new business models, increasing profitability, achieving sustainability goals, plus reducing obsolescence waste. We introduce CE-SAM as approach create value by extending cycles discarded useful equipment. dis...