Abstract. Sales cannibalization -i.e., intra-organizational sales diversionbears a prominent role in the competitive upheavals within Information Technology markets. However, detection and measurement thereof have only raised lukewarm interest among Information Systems scholars so far. To their defense, relevant methodological contributions are scattered across several disciplines, base themselves on equivocal definitions of cannibalization, present an overwhelming range of model specifications, and overlap with research on product and technology substitution. Therefore, we provide an interdisciplinary review of the literature on cannibalization, formulate a novel, clear-cut definition of the phenomenon, and clarify its relationship with substitution. Our other contributions are an exhaustive list of the modeling requirements necessary to describe the phenomenon, a compendium of cannibalization measurement models, and a summary of the findings with regard to Information Technology artifacts. This work should provide an adequate foundation and identify promising topics of study for further research endeavors in this domain.
Abstract. Platform competition may engender a substitution process whereby customers and complementors drift from one platform to another. For example, as the aftermath of a competitive race between a general-purpose platform and a single-purpose rival. A case in point is how sales of personal navigation devices (PND) have allegedly been sapped by GPS-enabled smartphones with comparable turn-by-turn navigation functionalities. Using a structural-break unit-root econometric model, the impact of smartphones on the quarterly volume sales of two leading PND manufacturers can be statistically assessed. Such an econometric analysis reveals a significant shift in the level of the underlying stochastic processes and dates the structural change at the third quarter of 2008, when the iOS and Android ecosystems were launched.
The research activities presented in this manuscript are focused on the documentation of a valuable built heritage asset: the Santa Marta bell tower (1769-1772), designed by the Italian architect Bernardo Antonio Vittone and located in the municipality of Montanaro (30 km North-East of Turin, Italy). The documentation of this complex palimpsest was designed to meet the requirements of the decay analysis and to provide a reference for the future restoration and valorisation project. To achieve these objectives a multi-scale and multi-sensor survey was designed and carried out exploiting several geomatics techniques (both range and image based). The fieldwork activities were firstly dedicated to the creation and measurement of a reference topographic network to be used as common local reference system for all the acquisitions as well as a series of control points (both inside and outside the bell towe) to be used for data orientation and accuracy assessment. Secondly, the exterior of the bell tower and its surroundings were imaged by means of an Unmanned Aerial Vehicle (UAV) and a set of Terrestrial Laser Scanning (TLS) acquisitions. The interior of the bell tower was sensed with two different rapid mapping approaches: using a handheld laser scanner based on the Simultaneous Localisation And Mapping (SLAM) technology and two different 360° cameras. All the acquired data were processed following both consolidated and experimental approaches and then integrated to generate traditional 2D architectural drawings supported by added value metric products. Of particular interest are the tests connected with the processing of the SLAM data and 360° images using a spherical photogrammetric approach that delivered preliminar encouraging results.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.