Portfolio management starts with asset allocation. There is a consensus that asset allocation plays an important role in determining portfolio performance (Arshanapalli, Coggin & Nelson, 2001). Active portfolio management implies the rebalancing of the existing portfolio by buying and selling assets. The aim of rebalancing is to improve the performance of the managed portfolio by adjusting it t...

Information systems portfolio management is a tool that is increasingly being used by large organizations to keep track of IT projects and align those projects with organizational strategy. This paper is an initial attempt to provide a theoretical lens with which to view the IS portfolio management phenomenon. Contingency theory, modern portfolio theory, and absorptive capacity serve as theoret...

M by the proliferation of multifunction products, we investigate product portfolio decisions of a single firm by analyzing the impact of three major factors. First, because multifunction products provide complete or partial functionalities of single-function products, we incorporate substitution or cannibalization effects between the potential products. Second, we explicitly model the variable ...

This paper proposes a new model for portfolio sensitivity analysis. The model is suitable for decision support in financial institutions, specifically for portfolio planning and portfolio management. The basic advantage of the model is the ability to create simulations for credit risk predictions in cases when we virtually change portfolio structure and/or macroeconomic factors. The model takes...

We investigate the sales and operations planning (S&OP) problem at Vestel Electronics, a major television manufacturer located in Turkey. The company’s product portfolio is very wide due to a large number of configuration options, and changes rapidly due to technological advances. Demand volatility is high and materials procurement requires long lead times. Hence, the S&OP process is critical f...

Minor innovations make up most of a company's development portfolio, on average, but they never generate the growth companies seek. The solution, says Day--the Geoffrey T. Boisi Professor of Marketing and a codirector of the Mack Center for Technological Innovation at Wharton--is for companies to undertake a systematic, disciplined review of their innovation portfolios and increase the number o...