HEC Montréal

About: HEC Montréal is a education organization based out in Montreal, Quebec, Canada. It is known for research contribution in the topics: Context (language use) & Vehicle routing problem. The organization has 1221 authors who have published 5708 publications receiving 196862 citations. The organization is also known as: Ecole des Hautes Etudes Commerciales de Montreal & HEC Montreal.

Positioning the institutional perspective in information systems research

Abstract: In recent years, a number of studies have adopted institutional theory as a perspective for examining Information Systems (IS)/Information Technology (IT)-related phenomena such as IT innovation, IS development and implementation, and IT adoption and use. The objective of this paper is to take stock of how institutional theory is being used in IS research. To this end, it first proposes a conceptual framework to encapsulate the main concepts of institutional theory. Second, it synthesizes the findings of 53 articles that adopted an institutional perspective to study IS/IT phenomena. Finally, it identifies conceptual and methodological issues that researchers need to address when adopting an institutional perspective.

The time-dependent pollution-routing problem

Abstract: The Time-Dependent Pollution-Routing Problem (TDPRP) consists of routing a fleet of vehicles in order to serve a set of customers and determining the speeds on each leg of the routes. The cost function includes emissions and driver costs, taking into account traffic congestion which, at peak periods, significantly restricts vehicle speeds and increases emissions. We describe an integer linear programming formulation of the TDPRP and provide illustrative examples to motivate the problem and give insights about the tradeoffs it involves. We also provide an analytical characterization of the optimal solutions for a single-arc version of the problem, identifying conditions under which it is optimal to wait idly at certain locations in order to avoid congestion and to reduce the cost of emissions. Building on these analytical results we describe a novel departure time and speed optimization algorithm for the cases when the route is fixed. Finally, using benchmark instances, we present results on the computational performance of the proposed formulation and on the speed optimization procedure.