Search results

The paper published below was prepared by Taylor Ostrander for Frank Knight’s course, Economic Theory, Economics 301, during the Fall 1933 quarter.

Sub-Saharan African cities suffer from poor quality transport options, excessive congestion and pollution. The informal transport sector contributes to these problems, but also represents part of the solution. This chapter reflects upon research undertaken to better understand the nature of these services, in the hope of providing insights into possible remediation.

Three case cities were studied: Cape Town; Dar es Salaam; and Nairobi. Each was examined by resident universities with respect to the quantity and quality of paratransit services provided, user satisfaction, business models and industry governance.

Each city has differences, but there are recurring themes. All are experiencing population growth and increased motorization, which steadily deteriorates operating environments. Law enforcement capability is limited and sometimes impeded by corruption. Operating enterprises tend to be fragmented. Financial resources are typically limited such that vehicle maintenance and replacement suffers. The safety and quality of service for passengers are therefore often poor. The prevalence of paratransit services is, however, such that any strategy to reform public transport systems needs to consider a role for them within a scheduled-paratransit hybrid network. Numerous challenges will need to be overcome for successful integration, but significant improvements to service quality can be made in the near- to medium-term through supporting interventions in business development, operating environment, vehicle fleets and operations.

Extension of the research programme could yield some significant improvements to operations and financial sustainability, through the piloting of innovative, lower cost technologies based on smartphone and other ICT technologies.

The chapter reveals that significant improvements to service quality can be made in the near- to medium-term through supporting interventions in business development, operating environment, vehicle fleets and operations.

We derive marginal conditions of optimality (i.e., Euler equations) for a general class of Dynamic Discrete Choice (DDC) structural models. These conditions can be used to estimate structural parameters in these models without having to solve for approximate value functions. This result extends to discrete choice models the GMM-Euler equation approach proposed by Hansen and Singleton (1982) for the estimation of dynamic continuous decision models. We first show that DDC models can be represented as models of continuous choice where the decision variable is a vector of choice probabilities. We then prove that the marginal conditions of optimality and the envelope conditions required to construct Euler equations are also satisfied in DDC models. The GMM estimation of these Euler equations avoids the curse of dimensionality associated to the computation of value functions and the explicit integration over the space of state variables. We present an empirical application and compare estimates using the GMM-Euler equations method with those from maximum likelihood and two-step methods.

This study proposes targeted modernization of the Department of Defense (DoD's) Joint Forces Ammunition Logistics information system by implementing the optimized innovative information technology open architecture design and integrating Radio Frequency Identification Device data technologies and real-time optimization and control mechanisms as the critical technology components of the solution. The innovative information technology, which pursues the focused logistics, will be deployed in 36 months at the estimated cost of $568 million in constant dollars. We estimate that the Systems, Applications, Products (SAP)-based enterprise integration solution that the Army currently pursues will cost another $1.5 billion through the year 2014; however, it is unlikely to deliver the intended technical capabilities.

The predominant view of positioning in both the literature and practice – a remarkably uni- or two-dimensional view – asks these questions: (1) What dimension should the product or service be positioned on, for example, unique styling, design, performance, and quality? (2) What category does the product or service compete in or belong to? So marketers therefore ask: Should the computer brand be positioned as reliable (Dell), or faster (Toshiba)? Research on economic value is well established in the pricing literature, especially in business-to-business pricing. Most of this literature focuses on differentiation value, that is, how to calculate the worth of the differential benefits a customer receives from using the firm's product versus the competitive substitute. But a much less studied area of this research deals with the price of the competitive reference product, or competitive frame of reference. Rarely do marketers extend positioning strategy to the level of economic value, asking: How is the product framed, and how valuable is the frame? The purpose of this chapter is to explore competitive frames of reference in business-to-business positioning. Specifically, what are alternative types of frames of reference? What is the role of the reference price in frames of reference? What are the implications of choosing one type of frame of reference versus another?

Over the past three decades, new off-grid electrification infrastructures – as micro-grids and other solar solutions – have moved from innovative initiatives, conducted by NGOs and private stakeholders, to a credible model promoted by international organizations for electrification of rural areas in developing countries. Multiple conditions support their spread: major technological advances in the field of renewable energies (panels, batteries), intensive Chinese industrial production allowing lower prices, institutional reforms in Africa including these solutions in major national electrification programmes, and, finally, an opening to the private sector as a supposed guarantee of the projects’ viability. However, while the development of this market calls for significant investments, a vast set of calculations and a strong “micro-capitalist” doctrine, all involved in their design, experts admit that a large proportion of projects hardly survive or even fail.

This chapter investigates these failures by exploring the ecology of such infrastructures, designed for “the poor.” It discusses “thinking infrastructures” in terms of longevity by focusing on economic failures risks. The authors argue that the ecology of the infrastructure integrates various economic conversions and exchanges chains expected to participate in the infrastructure’s functioning. By following energy access solutions for rural Africa in sub-regions of Senegal and Madagascar, from their political and technical design to their ordinary life, the authors examine the tensions and contradictions embedded within the scripts of balance supposed to guarantee their success.

As an answer for the limited growth potentials of diversification and internationalization, services became increasingly important for industrial firms in recent years. Based on existing and established business concepts, companies explore new segments in their traditional value chains beyond traditional market penetration strategies: they pursue service transition strategies to open up new sources for growth, even in markets that do not promise great expansion potential. Our paper addresses the issue of economies of scope of service transition. In this context, we first explore the question, to what extent the insights about product diversification strategies from physical goods sectors can be transferred to the service sector. Using competence-based considerations on diversification we focus on dynamic economies of scope, whose central idea is exploration and development of new resources rather than the static exploitation of existing ones. Furthermore, we integrate the largely neglected issue of how the phenomenon of service diversification depends on the industry's life cycle stage. In a small empirical study of the German mechanical engineering industry we demonstrate that diversification steps into services require a shift in the resource and competence base of firms. Using a dynamic perspective, we construct a conceptual framework for analyzing and explaining the advantages of service transition strategies. The developed model describes a service diversification trajectory and points out that the establishment of a profitable service business requires the exploration and development of competences and adequate organizational structures.