B2C eCommerce Strategy and Market Structure: The Survey Based Approach

This paper follows two objectives: (i) It demonstrates the merits of the survey based approach to B2C eCommerce characteristics and company strategy, and (ii) it presents empirical evidence of the crucial importance of size and marketing investment in B2C eCommerce markets. It presents econometric estimates of the effects of company characteristics and company strategies on the performance of Viennese B2C eCommerce companies in 2001. We provide econometric analysis of three dependent variables in turn: (i) number of B2C eCommerce customers in 2000, (ii) number of B2C eCommerce employees in January 2001 and (iii) revenue growth rate in 2001. The models do explain the data quite well: Size as well as endogenous sunk costs emerge as the main success factors. Furthermore, the results of nonparametric tests are presented. They mostly confirm the econometric evidence. We also show that the quantitative results are consistent with the qualitative results of the surveys. Finally, we argue that the survey based approach to B2C eCommerce is a method that provides reliable and consistent data, and that it complements the approach based on prices and consumer behavior commonly applied.B2C eCommerce, empirical evidence, success factors, endogenous sunk costs, market structure

Quantum breathing dynamics of ultracold bosons in 1D-harmonic traps: Unraveling the pathway from few- to many-body systems

Following a `bottom-up approach' in understanding many-particle effects and dynamics we provide a systematic ab initio study of the dependence of the breathing dynamics of ultracold bosons in a 1D harmonic trap on the number of bosons ranging from few to many. To this end, we employ the Multi-Layer Multi-Configuration Time-Dependent Hartree method for Bosons (ML-MCTDHB) which has been developed very recently [S. Kr\"onke, L. Cao, O. Vendrell and P. Schmelcher. {\it New J. Phys.} {\bf 15}, 063018 (2013)]. The beating behavior for two bosons is found numerically and consequently explained by an analytical approach. Drawing on this, we show how to compute the complete breathing mode spectrum in this case. We examine how the two-mode breathing behavior of two bosons evolves to the single-frequency behavior of the many-particle limit when adding more particles. In the limit of many particles, we numerically study the dependence of the breathing mode frequency on both the interaction strength as well as on the particle number. We provide an estimate for the parameter region in which Gross-Pitaevskii theory is well applicable

B2C eCommerce Strategy and Market Structure: The Survey Based Approach

This paper follows two objectives: (i) It demonstrates the merits of the survey based approach to B2C eCommerce characteristics and company strategy, and (ii) it presents empirical evidence of the crucial importance of size and marketing investment in B2C eCommerce markets. It presents econometric estimates of the effects of company characteristics and company strategies on the performance of Viennese B2C eCommerce companies in 2001. We provide econometric analysis of three dependent variables in turn: (i) number of B2C eCommerce customers in 2000, (ii) number of B2C eCommerce employees in January 2001 and (iii) revenue growth rate in 2001. The models do explain the data quite well: Size as well as endogenous sunk costs emerge as the main success factors. Furthermore, the results of nonparametric tests are presented. They mostly confirm the econometric evidence. We also show that the quantitative results are consistent with the qualitative results of the surveys. Finally, we argue that the survey based approach to B2C eCommerce is a method that provides reliable and consistent data, and that it complements the approach based on prices and consumer behavior commonly applied.B2C eCommerce, empirical evidence, success factors, endogenous sunk costs

The Global Health Network on Alcohol Control: Successes and Limits of Evidence-based Advocacy

Global efforts to address alcohol harm have significantly increased since the mid-1990s. By 2010, the World Health Organization (WHO) had adopted the non-binding Global Strategy to Reduce the Harmful Use of Alcohol. This study investigates the role of a global health network, anchored by the Global Alcohol Policy Alliance (GAPA), which has used scientific evidence on harm and effective interventions to advocate for greater global public health efforts to reduce alcohol harm. The study uses process-tracing methodology and expert interviews to evaluate the accomplishments and limitations of this network. The study documents how network members have not only contributed to greater global awareness about alcohol harm, but also advanced a public health approach to addressing this issue at the global level. Although the current network represents an expanding global coalition of like-minded individuals, it faces considerable challenges in advancing its cause towards successful implementation of effective alcohol control policies across many low- and middle-income countries (LMICs). The analysis reveals a need to transform the network into a formal coalition of regional and national organizations that represent a broader variety of constituents, including the medical community, consumer groups and development-focused non-governmental organizations. Considering the growing harm of alcohol abuse in LMICs and the availability of proven and cost-effective public health interventions, alcohol control represents an excellent ‘buy’ for donors interested in addressing non-communicable diseases. Alcohol control has broad beneficial effects for human development, including promoting road safety and reducing domestic violence and health care costs across a wide variety of illnesses caused by alcohol consumption

A Human Rights-Based Approach (HRBA) in Practice: Evaluating NGO Development Efforts

Human rights-based approaches (HRBAs) promise greater alignment of development efforts with universal norms, as well as a focus on the root causes of poverty. While HRBAs have been widely adopted across the development sector, there is little systematic evidence about the actual impact of this strategic shift. Evaluating the effectiveness of HRBAs is challenging because various non-governmental and other organizations have developed very different understandings of how to apply a rights-based framework in the development context. This essay takes a step toward the rigorous evaluation of HRBAs by offering a comprehensive review of rights-based programming implemented by Plan International, a child-centered organization. It shows that Plan’s adoption of HRBA-inspired strategies has transformed its interactions with local communities and added an explicit focus on the state as the primary duty bearer. There is evidence for a systematic increase in individual rights awareness, greater ownership exercised by community organizations, and the application of evidence-based advocacy aimed at scaling up proven program activities. But Plan’s peculiar brand of HRBA neglects collaboration with domestic social movements and civil society, largely avoids a more confrontational approach towards the state, and has yet to produce evidence for regular successful rights claims by disadvantaged communities against governmental representatives at local, regional, or national levels. The study also reveals a limited ability of Plan to address disparities and discrimination within local communities, as well as a need to define clearly the organization’s own accountability and duties deriving from its presence in local communities across more than fifty developing nations

The growth, structure, and thermal stability of vapor deposited ultra-thin metal films: Rh on Ag(100), Au on Pd(110), and Pt on Pd(110)

The growth, structure, and thermal stability of ultra-thin metal films is investigated using surface sensitive techniques. The three systems studied present a variety of differing characteristics which can contribute to the growth mode, two-dimensional structure, and thermal stability of the films. The main factors contributing to the differing properties of the three systems presented here are: (1) the different substrate morphologies; (2) the differences in surface free energies between the overlayer and the substrate; (3) the degree of lattice mismatch for a particular system; and (4) the extent of miscibility of the two metals. These characteristics allow a means of comparison for the three systems studied;The Rh films are found to grow in a pseudo layer-by-layer manner on Ag(100) at 300 K. At higher temperatures Ag migrates to the surface of the Rh films forming a Ag-Rh-Ag sandwich structure. The differences in surface free energies, the high mobility of the Ag atoms, and the immiscibility of the two metals is thought to govern the equilibrium structure of this system;The Au films on Pd(110) grow layer-by-layer for the first two layers, followed by a trend toward three-dimensional growth for thicker films. The Au films reconstruct to a (1 x 2) superstructure at two monolayers, and to a (1 x 3) structure at higher coverages. This transition between the (1 x 2) and (1 x 3) is postulated to originate from a break down in the two-dimensional order as three-dimensional growth begins, which favors the formation of the (1 x 3) structure;The Pt films on Pd(110) follow a pseudo layer-by-layer growth at low temperatures, with three dimensional growth occurring at higher temperatures. The (1 x 2) and (1 x 3) superstructures are also observed for this system, the transition between the two being temperature dependent. Presumably the Pt is kinetically trapped into layer-by-layer growth at low temperatures. However, at higher temperatures three dimensional growth begins resulting in a similar transition between the two phases as is observed for Au on Pd(110);Fundamental research on metal overlayers, such as that described here, provides meaningful information on phenomena which govern interface formation and film growth processes

Understanding the Limits of Transnational NGO Power: Forms, Norms, and the Architecture

A growing chorus of critics have called upon transnational nongovernmental organizations (TNGOs) from the Global North to “decolonize” their practices, to “shift the power” to the Global South, and to put an end to “white saviorism” by initiating a variety of significant organizational changes. Despite these repeated calls, the TNGO sector still struggles to reform. Explanations for TNGOs’ ongoing struggles from within the field of international relations have generally centered on TNGOs themselves and the ironies and paradoxes of organizational growth and financial success. This article introduces a different argument that TNGOs’ struggles to adapt in response to their critics are the result of TNGOs’ “nonprofitness.” By virtue of being nonprofit, TNGOs are embedded in an architecture consisting of forms and norms that inherently limit the extent to which they are able to change. Using the construct of the architecture, this article provides a novel account for the challenges that TNGOs confront as they attempt to close the gap between the rhetoric and reality of inclusive and transformational socioeconomic, political, or environmental change