Applied researchers most often estimate the demand for differentiated products assuming that at one item can be purchased. Yet simultaneous multiple purchases are pervasive. Ignoring interdependence among lead to erroneous counterfactuals, in particular, because complementarities ruled out. I consider identification and estimation of a random coefficient discrete choice model bundles, namely se...

In supply chain co-opetition, firms simultaneously compete and co-operate in order to maximize their profits. We consider the nature of co-opetition between two firms: The product supplier invests in the technology to improve quality, and the purchasing firm (buyer) invests in selling effort to develop the market for the product before uncertainty in demand is resolved. We consider three differ...

This paper presents application of an improved Harmony Search (HS) technique and Charged System Search algorithm (CSS) to estimate transport energy demand in Iran, based on socio-economic indicators. The models are developed in two forms (exponential and linear) and applied to forecast transport energy demand in Iran. These models are developed to estimate the future energy demands based on pop...