in this paper, the problem of determining the quality level, lead time for order delivery and price of a product produced by a manufacturer is considered. in this problem the demand for the product is influenced by all three decision variables: price, lead time and quality level. to formulate the demand function, a fuzzy rule base that estimates the demand value based on the three decision vari...

The success of Plumpy’Nut® in treating severe acute malnutrition revolutionized the treatment of malnutrition and sparked efforts to develop Lipid-based Nutrient Supplement (LNS) products aimed at preventing undernutrition. The move from therapeutic to preventative LNS products has fundamental implications for supply chains and implies that private demand and the private sector will likely play...

For many products the average price paid by consumers falls during periods of high demand. We use information from a large supermarket chain to decompose the decrease in the average price into a substitution effect, due to an increase in the share of cheaper products, and a price reduction effect. We find that for almost all the products we study the substitution effect explains a large part of...

reaching an electricity system which is both economically efficient and environmentally friendly is motivating countries to design and execute different types of tou demand response programs. but there are certain deficiencies which prevent these programs to effectively modify the load shape. smart grid as a means could help the electricity system to reach the highest demand side management ...

This paper investigate Iranian tourism demand to Malaysia using the recently developed autoregressive distributed lag (ARDL) ‘Bound test’ approach to cointegration for 2000:Q1 to 2013:Q4. The demand for tourism has been explained by macroeconomic variables, including income in Iran, tourism prices in Malaysia, tourism price substitute, travel cost and trade value between Iran and Malaysia. In a...

This paper provides evidence that a firm’s stock price movements affect its customer demand. I develop a model in which customers learn about a firm’s product quality partially from its stock price. This learning induces feedback from the price to customer demand. Furthermore, the firm manager adjusts product launch decisions in anticipation of these demand shifts. Consistent with the model’s i...

abstract prescribing behavior of physicians affected by many factors. the present study is aimed at discovering the simultaneous effects of the evaluated factors (including: price, promotion and demographic characteristics of physicians) and quantification of these effects. in order to estimate these effects, fluvoxamine (an antidepressant drug) was selected and the model was figured out by pan...