Understanding the Determinants of User Acceptance of Enterprise Instant Messaging: An Empirical Study

As modern organizations increasingly depend on information systems (IS) to enhance work productivity and seek new business opportunities, communication effectiveness has become one of the key factors that underlie the effective performance of IS implementations and applications. Instant Messaging (IM) presents a revolution in enterprise communication. As more organizations are findings ways to utilize this near-synchronous computing communication technology to enhance communication effectiveness in the workplace, there is a compelling need to understand the factors that are important for the adoption of enterprise IM. We have developed an integrative model based on constructs of the existing IT adoption models as well as theories on motivation, innovation diffusion, and critical mass. Using responses from 140 intended subjects, we have found the results of survey data support the contentions that perceived usefulness, compatibility, enjoyment, and security are significant predictors of intention to use enterprise IM. Although perceived connectivity did not predict the intention directly, it did indirectly through perceived usefulness and perceived ease of use. Implications and future research are discussed.     

Price discrimination through multi-level loyalty programs

Loyalty programs often feature multiple rewards with different requirements; for instance, an airline offering a free domestic ticket for 10 K miles, and an international ticket for 20 K miles. This research focuses on the role of multi-level rewards as a segmentation and price discrimination mechanism: Multi-level rewards can increase firm profits when buyers differ in purchase frequency and/or time discount factor. We propose that a program with two rewards can be designed in such a way that (i) it is more profitable than a one-reward program, and (ii) buyers self-select. Light users prefer to receive the smaller reward two times over receiving the larger reward one time, even though the smaller reward is less than half of the larger reward. We show that the smaller reward helps the firm enlarge its base in the light user segment. We also compare multi-level programs with quantity discounts.     

Purchasing Power Parity and aggregation bias for a developing country: The case of Mexico

This paper investigates long-run Purchasing Power Parity (PPP) between the US and Mexico. We use a panel of disaggregated price data between the US and Mexico with a long time series to look at two types of aggregation bias. The first is examined in Imbs et al. — which we refer to as estimator aggregation bias — and the second is put forth by Broda and Weinstein — hereafter, data aggregation bias. The findings indicate substantial estimator aggregation bias and data aggregation bias. Although estimates using aggregate data and imposing homogeneous coefficients provide little evidence of PPP, findings with disaggregated data and heterogeneous coefficient estimators offer strong support. The results also suggest the presence of small-sample bias as examined in Chen and Engel, but with little effect on the qualitative results. Tradable goods and non-tradable goods show little distinction in convergence rates. Estimated half-lives are lower under flexible than fixed exchange rates and indicate rapid convergence during the Mexican peso crisis.     

The intrinsic fallacy of market mechanism and private property rights in alleviating the tragedy of the commons

ABSTRACT

Economists’ solution to the tragedy of the commons relies on well-defined property rights and competitive market mechanism for limiting individuals’ self-serving, short-sighted actions that result in a dramatic depletion of the common resources. However, this solution implicates a serious threat in terms of sustainability. Recently, deterioration of genetic diversity reached alarming levels, mainly attributed to escalating economic pressure that obliges farmers to shift from local breeds towards more profitable and more productive industrial breeds. This study empirically examines the efficiency of the free market mechanism as a solution to the tragedy of the commons through a unique natural experiment in which a huge demand shock arises regarding sheep. Results robustly show that the free market mechanism can cope with even a very challenging demand shock through the adjustment of prices without any shortage of the commodity. However, this finding does not guarantee that such an outcome is sustainable over the very long term. Analysis of the growth rate of the local sheep breeds population and cross-breed sheep population shows that the trend is overwhelmingly in favour of cross-breeds, thus supporting concerns for a free market mechanism, intrinsically driving the extinction of local sheep breeds, an invaluable genetic resource.     

The limit of law: factors influencing the decision to make harmful acts illegal

Economics of Governance - This paper examines factors affecting the decision of whether or not to make certain harmful acts illegal. It considers factors related both to the cost of law enforcement...     

Testing the validity of PPP theory for African countries

This study examines the purchasing power parity theory for 14 African countries by applying a recent composite time series method that incorporates the Fourier approximation. The structural breaks are modelled as a gradual smooth process by means of a Fourier component. The Fourier unit root test failed to find any evidence showing that real exchange rates for these 14 countries have mean-reverting tendencies. However, both cointegration and Fourier cointegration tests detect a stable long-term relation between the nominal exchange rate and relative price levels for 8 out of 14 countries; moreover, for five countries Fourier component in cointegration analysis is found to suit quite well.     

The relationship between burn-out and psychological resiliency levels of special education teachers in a developing economy

The aim of this study was to examine the relationship between burn-out and psychological resiliency levels of special education teachers based on some demographic variables. 70 special education teachers working at 7 special education schools affiliated to North Cyprus Ministry of Education Primary Education Management Office and 21 schools which has special education mainstreaming room participated in this research. The Maslach Burn-Out Scale was used in this study to determine burn-out levels of special education teachers while the Psychological Resiliency Scale for Adults was used to determine their psychological resiliency levels. The study revealed a negative relationship between family cohesion (a sub-dimension of psychological resiliency) and emotional burn-out and desensitization (the sub-dimensions of burn-out), and it found no significant difference for gender in terms of both variables. The emotional burn-out score (a sub-dimension of burn-out scale) differed significantly based on the daily working hours of teachers. There is however a significant difference between “structural style” scores (the sub-dimension of psychological resiliency) based on educational status, as well as between desensitization scores of special education teachers and age.

     

MNE performance during a crisis: An evolutionary perspective on the role of dynamic managerial capabilities and industry context

As the likelihood of worldwide crises increases due to globalization and the resulting economic contagion, understanding why some multinational enterprises (MNEs) prevail in such environments becomes ever more critical. Drawing from the concept of dynamic managerial capabilities, we posit that MNE in-crisis performance is associated with the pre-crisis development of asset management capabilities, or the capacity of managers to orchestrate assets so as to extract more value from the firm’s resource pool. Specifically, we argue that because dynamic managerial capabilities evolve as a response to a firm’s task environment, MNEs that operate in dynamic industries develop stronger asset management capabilities. However, we also posit that whether these capabilities contribute to in-crisis performance is contingent upon the munificence of the industry environment in which the capability evolves. Asset management capabilities that evolve in munificent environments would encompass a wider spectrum of routine-altering activities, and thus increase the ability of the MNE to react to more revolutionary events, such as global economic crises. Conversely, asset management capabilities that evolve in resource-scarce environments will result in more strategic lock-in due to firms' constrained ability to experiment with novel resource configurations, resulting in poorer in-crisis performance. We test our hypotheses using a sample of 854 MNEs in the context of the global financial crisis of 2008, and find support for our hypotheses. We discuss implications for the dynamic capabilities view and MNE resilience.     

The recruitment and selection of pension trustees: an integrative approach

The role of a pension trustee is significant, which makes the recruitment and selection of labour trustees an important issue. In this article, we examine and combine aspects of two approaches to recruitment and selection: the political nomination model and the more professional HRM approach. We argue that an integrative approach would acknowledge the political, regulatory and organisational context while incorporating valid selection criteria such as domain‐specific skills and performance on the job. Such an integrated process can help trade unions in filling labour trustee positions with talented individuals who are more likely to be effective in achieving labour's goals in pension governance.     

Volatility Spillover Effects in Interregional Equity Markets: Empirical Evidence from Brazil and Turkey

We investigate volatility spillovers between two stock markets: Turkey and Brazil. Using a misspecification-robust causality-in-variance test, we find evidence supporting volatility spillovers from the São Paulo Stock Exchange to the Istanbul Stock Exchange. Moreover, the results imply that financial crises may change the nature of volatility spillovers between the two markets by adding an additional channel of volatility transmission from Turkey to Brazil.