Decomposition-integral: unifying Choquet and the concave integrals

This paper introduces a novel approach to integrals with respect to capacities. Any random variable is decomposed as a combination of indicators. A prespecified set of collections of events indicates which decompositions are allowed and which are not. Each allowable decomposition has a value determined by the capacity. The decomposition-integral of a random variable is defined as the highest of these values. Thus, different sets of collections induce different decomposition-integrals. It turns out that this decomposition approach unifies well-known integrals, such as Choquet, the concave and Riemann integral. Decomposition-integrals are investigated with respect to a few essential properties that emerge in economic contexts, such as concavity (uncertainty-aversion), monotonicity with respect to stochastic dominance and translation-covariance. The paper characterizes the sets of collections that induce decomposition-integrals, which respect each of these properties.     

China and India in World Trade: Are the Asia Giants a Threat to Malaysia?1

Abstract

With higher shares in world merchandise trade and improvements in product quality, China is better positioned than India in the near term for influencing global trade. From the Malaysian perspective, China represents a non-negligible share in Malaysia's trade. The trends in bilateral trade with both Giants however suggest that competition has intensified. Relative to India, China appears to promulgate a more influential role on Malaysia via higher commodity overlap in external markets, greater matched trade that is of vertical differentiation, distinct quality shifts and negative adjustment pressures. Within this broad rubric of trade-induced changes, there is no evidence of skill upgrading for Malaysia in trade expansion with both Giants. This mirrors the lack of product quality improvements and the low levels of export values of high quality varieties in matched trade. Hence trade induced changes from the Giants that have been cited to be favourable from the Malaysian perspective in previous studies, may have been grossly overstated.     

Organizational Culture,Competitive Strategy,and Performance in Ghana

The influence of competitive strategy on the organizational culture and performance relationship in Ghana is examined in this study using structural equation modeling. Results suggest evidence of both direct and indirect effects of organizational culture on firm performance. Firms with a predominantly clan or market culture were more likely to be directly associated with performance, whereas firms with adhocracy or hierarchy cultures were more likely to be indirectly associated with performance, depending on their alignment with a differentiation strategy or cost leadership strategy. However, only the link with differentiation strategy resulted in market performance. Managerial and theoretical implications are discussed.     

What restrictions do Bayesian games impose on the value of information?

In a Bayesian game players play an unknown game. Before the game starts some players may receive a signal regarding the specific game actually played. Typically, information structures that determine different signals, induce different equilibrium payoffs. In two-person zero-sum games the equilibrium payoff measures the value of the particular information structure which induces it. We pose a question as to what restrictions Bayesian games impose on the value of information. We provide answers for two kinds of information structures: symmetric, where both players are equally informed, and one-sided, where only one player is informed.     

Sino–LAC Ties: Trade Relationships,Trade Potentials,and Asymmetric Dependency

Previous studies have emphasized the asymmetry in the Sino–LAC (Latin America and the Caribbean) partnership, solely based on their trade exchanges. This article extends the boundaries of understanding structural asymmetries in the Sino–LAC trade, by considering unequal opportunities in this partnership. The latter is accounted for by deriving two-way export potentials from the Sino–LAC partnership. On average, the gravity of LAC’s trade promise with China appears to lie in continuing to grow the level of exports in agriculture. The export potentials observed for LAC to China, instead of China to LAC, not only imply untapped possibilities for the former relative to the latter connection, but indicate their disparate opportunities for further integration.     

Embedding environment and sustainability into corporate financial decision-making

The business case for sustainability can be built upon: (i) cost reduction from efficient resource utilisation, (ii) revenue enhancement, (iii) risk management, and (iv) intangible assets. However, executives often adopt a short-term perspective owing to executive compensation, investor pressure, and decision-making criteria tied to fixed financial reporting systems. We propose an integrated conceptual framework, which highlights how firms could embed environment and sustainability into their long-term financial decision-making framework. To give this goal structure, the firm could adopt: (i) longer-term executive compensation plans, (ii) longer-term financial reporting, and (iii) flexible financial decision-making models which embed intangibles.     

The Transitioning of Marketing Practices from Segment to Customer-Centric Marketing in the African Business Context: Toward a Theoretical Research Framework

ABSTRACT

Although marketing has long been posited to be shifting from segment marketing to customer-centric marketing, there is little theoretical insight into the status of such transformation, especially in emerging African economies. Therefore, this paper develops an integrated theoretical framework for assessing (a) the extent to which firms in African economies use the segment marketing mix (4Ps) versus the customer-centric marketing mix (4As) as well as (b) their antecedents and performance outcomes. Propositions drawn from qualitative data and theoretical tenets in strategic management and in institutional theory are offered to guide systematic empirical research.     

Cost-utility analysis of alemtuzumab in comparison with interferon beta,fingolimod, and natalizumab treatment for relapsing-remitting multiple sclerosis in Austria

Background: Multiple sclerosis (MS), a chronic progressive, demyelinating, inflammatory disease, affects 2.5 million people worldwide. Approximately 63% of cases are classified as relapsing–remitting MS (RRMS) at the time of diagnosis. The aim of this cost-utility analysis is to evaluate alemtuzumab vs interferon beta (intramuscular [IM] interferon beta-1a, subcutaneous [SC] interferon beta-1a, SC interferon beta-1b, and SC pegylated interferon beta-1a) in previously treated, and vs SC interferon beta-1a, fingolimod, and natalizumab in untreated RRMS patients to determine the incremental cost-effectiveness ratio among the treatment alternatives as prices, the route, and the frequency of administration of considered products vary significantly.

Methods: The primary outcome was the modeled incremental cost-effectiveness ratio (ICER; €/quality-adjusted life-year [QALY] gained). Markov modeling with a 10-year time horizon was carried out. During each 3-month cycle, patients maintained the Expanded Disability Status Scale (EDSS) score or experienced progression, developed secondary progressive MS (SPMS), or showed EDSS progression in SPMS; experienced relapses; suffered from an adverse event (AE); changed treatment; or died. A published network meta-analysis (NMA) was used for indirect comparison. The possibility of a therapy switch was considered. Clinical input data and resource utilization data were derived from the literature. Costs were extracted from price lists published in Austria and were calculated from the payer’s perspective.

Results: In treatment naïve patients, alemtuzumab is associated with costs of €132,663 and 5.25 QALYs in a 10-year time horizon. Costs for SC interferon beta amount to €164,159 and generate 4.85 QALYs. Also, in the pre-treated patients, alemtuzumab dominated comparators by accumulating higher total QALYs (4.88) and lower total costs (€137.409) compared to interferon beta-1a (€200.133), fingolimod (€240.903), and natalizumab (€247.758).

Conclusion: The analysis shows that alemtuzumab is a cost-saving alternative to treat RRMS in pre-treated and therapy naïve patients. From the patient perspective, alemtuzumab improves quality-of-life.