Search results for "Database"
showing 10 items of 2136 documents
A conjoint analysis of customers' preferences for e-banking channels
2021
Internet has transformed the manner in which banks interact with the customers. The purpose of the paper is to measure customers' preferences towards different channel attributes namely: internet banking, mobile banking and payment portals at a composite level that reflect the relative importance of usage attributes, i.e., payment type, transaction size, motivation to use and rate of urgency. Conjoint analysis was applied to estimate utilities for these attributes and to determine the existence of consumer groups with similar preference profiles. Furthermore, our study shows that the most preferred combination of utilities are customers preference to use payment portal, for 'paying bills' o…
How risk influences the choice of governance mode in biopharmaceutical inter-firm relationships
2013
Abstract This paper proposes a new theoretical framework for assessing the influence of risk in shaping the governance form in biopharmaceutical inter-firm relationships. In particular, we propose a multidimensional operationalization of relational and performance risk and, by following Transaction Cost Economics (TCE) and Real Options (RO) theory constructs, we hypothesize a relation between the aforementioned risk components and the choice of governance form. Specifically, following TCE reasoning, we hypothesize that a high level of relational risk leads towards more hierarchical governance forms, while, following RO theory, we hypothesize that a high level of performance risk leads towar…
Management factors affecting the performance of technology firms
2010
Abstract This paper analyzes high-technology firms within the European Union to determine the factors that influence performance through business productivity. The study examines six different factors that are representative of entrepreneurial activity, firstly from a purely business standpoint, and subsequently from the areas of production and technology, human resources, strategy and marketing and, lastly, the economic-financial area. Results indicate a direct relation between productivity and factors such as private borrowing, dynamism or using price as a strategic factor, while the reverse is true for concepts such as family resources, level of investment in R&D or training programs.
Online information quality as determinant of perceived risk reduction in e-commerce: an application to apparel virtual stores
2011
The main purpose of this paper is to analyse the role of information quality as a mechanism for reducing virtual shopping perceived risk and inducing greater online purchase intent. In this way, a theoretical model is presented which explains the inverse relation of information quality (referred to product and transaction-associated services) and perceived risk, and the influence of these variables on online shopping intention. 350 young consumers navigated the web page of a fictional clothes brand, and were asked to select a product and complete the purchasing process. Data analysis shows that perceived risk related to the virtual store is a significant, negative antecedent of online purch…
A family life cycle model adapted to the Spanish environment
2001
Aims to demonstrate, from a marketing and market segmentation point of view, the need to adapt the construct of the family life cycle to the particular features of the Spanish social environment, given the obvious differences in the structure of Spanish households in relation to the USA. From this marketing and cross‐cultural approach, a review of the literature has been conducted on the evolution of the construct and the most significant models that have been arising as the outcome of that evolution. A new life cycle model has been designed reflecting these particular features. Also, on the basis of data taken from the Family Budgets Survey, the capacity of the adapted model has been analy…
The Representation of Shopping in Children’s Books
2016
Purpose The purpose of this paper is to identify the representations, figures and processes of shopping/commerce in books published in France that are aimed at three to seven-year-olds. Design/methodology/approach A semiotic analysis of nearly 50 books published over the past 60 years. Findings These books reveal a broad diversity in the images of shops given to children (ranging from the traditional shop, a source of pleasure and creator of social ties, to the hypermarket/megastore, a symbol of stress and overconsumption) and the wealth of information that is given to children to help them assimilate the process of a shopping transaction. Originality/value The originality and richness of …
Improving Isolation of Blindly Separated Sources Using Time-Frequency Masking
2008
A refinement technique based on time-frequency masking is proposed to improve source isolation in blind audio source separation algorithms. The refinement technique uses an energy-normalized source-to-interference ratio in order to identify and eliminate interfering energy from the extracted sources. Some examples using this refinement method with different separation algorithms are discussed. The results show that source isolation can be significantly enhanced with negligible degradation of the separated sources.
Mass appraisal of residential real estate using multilevel modelling
2016
Mass appraisal, or the automatic valuation of a large number of real estate assets, has attracted the attention of many researchers, who have mainly approached this issue employing traditional econometric models such as Ordinary Least Squares (OLS). However, this method does not consider the hierarchical structure of the data and therefore assumes the unrealistic hypothesis of the independence of the individuals in the sample. This paper proposes the use of the Hierarchical Linear Model (HLM) to overcome this limitation. The HLM also gives valuable information on the percentage of the variance error caused by each level in the hierarchical model. In this study HLM was applied to a large dat…
A Generic Method of Line Matching for Central Imaging Systems under Short-Baseline Motion
2009
Line matching across images taken by a central imaging system (perspective or catadioptric) with focus on short baseline motion of the system is proposed. The relationship between images of lines on unitary sphere is studied and a simple algorithm for matching lines are proposed assuming the rotation of the system is known apriori or it can be estimated from some correspondences in two views. Two methods are discussed for retrieving R in the case it is not known apriori. Experimental results on both synthetic and real images are also presented.
Study of the coordination of ortho-tyrosine and trans-4-hydroxyproline with aluminum(III) and iron(III)
2018
Abstract The coordination of amino acids ortho-tyrosine (o-Tyr, 1) and trans-4-hydroxyproline (HPro, 2) with the biologically important trivalent metal ions Al(III) and Fe(III) in aqueous solution was investigated by 1H and 13C high resolution NMR, Laser Desorption Mass Spectrometry (LD-MS), and MS/MS experiments. Potentiometric measurements were also carried out in 0.16 M NaCl, 37 °C, by varying the pH between 2.0 and 3.5. NMR spectra recorded on aqueous solutions of amino acids 1 or 2 in the presence of the appropriate trivalent metal chloride suggested that binding of Al(III) and Fe(III) involved the COOH and NH2 functional groups of ligands, while their phenolic and alcoholic groups whi…