Oligopoly models with different learning and production time scales

We propose a modelling approach to study Cournotian oligopolies of boundedly rational firms which continuously update production decisions on the basis of information collected periodically. The model consists of a system of differential equations with piecewise constant arguments, which can be recast into a system of difference equations. Considering different economic settings, we study the local stability of equilibrium, proving the destabilizing role of the time lag between two consecutive learning activities. We investigate some particular families of oligopolies showing the occurrence of both flip and Neimark–Sacker bifurcations, as well as the evidence of multistability with the coexistence between different attractors, occurring when oligopolies consisting of both technologically different and identical firms are studied.     

Social Responsibility and Performance: Does Strategic Orientation Matter for Small Businesses?

This paper examines whether strategic orientation toward corporate social responsibility (CSR) is instrumental in shaping small firms’ social responsibility practices leading to their enhanced financial performance and reputation. Data were collected from 182 small businesses operating in Malaysia based on random sampling technique and analyzed using Partial Least Squares Structural Equation Modeling. Analysis of the findings confirm that small firms’ long‐term strategic approach toward CSR is critical in driving their responsible practices toward environment, customer, community, employees, and suppliers which in turn impact small firms’ financial performance and better reputation building. These findings suggest that customers' and employees’ interests are strategic imperatives that small firms should address in enhancing their financial performance and building better reputation in the community. These findings have important implications for small firms’ strategic policy posture which are highlighted in the paper. The paper also identifies the possible limits of the research and suggests avenues for future studies.     

The exchange value of the dollar and the U.S. trade balance: An empirical investigation based on cointegradon and Granger causality tests

This article performs tests of Granger causality in the relationships between the nominal ad real exchange rates of the dollar and the U.S. trade balance as well as its price and quantity components over the period 1973:IIQ–1989:IIIQ. Our results suggest: (i) weak statistical evidence of unidirectional causality running from the nominal exchange rate to import prices and nominal trade balance (ii) no statistical support for the proposition that the real exchange rate simply “accommodates” changes in the real trade balance, and (iii) strong (no) causal links between the nominal and real exchange rates and export (import) volume. We tentatively conclude that movements in the exchange rate have a rather limited effect on the trade balance and that this effect is more likely to materialize on the export side of the trade balance.     

Evaluating the operational and profitability efficiency of a UAE-based commercial bank

This study investigates the operating and profitability efficiency of 15 branches of UAE-based commercial bank utilising the data envelopment analysis method. The results indicate that efficiency levels among the various branches vary and that there is room for improvement. Profitability efficiency appears to be higher than operational efficiency. Regarding the financial ratios analysis, a consistent effect cannot be obtained and it cannot be determined which branch has an overall position in terms of higher performance. The historical analysis of the branch network performance indicates that management should consider major operational improvement efforts to reduce employees' expenses and other operating expenses combined with an increase in the total loans portfolio. Improvement in both interest and non-interest revenues is required to increase profitability efficiency of the whole branch network.     

Causality nexus of exports,FDI and economic growth of the ASEAN5 economies: evidence from panel data analysis

This paper analyzes the causal relationships between exports, FDI and economic growth among the ASEAN5 countries. We have used a three-stage procedure based on unit root, co-integration and causality tests applied to the panel data from 1981 to 2013. The results reveal that there is a bi-directional causal relationship between FDI and growth in the long run, while there is a unidirectional causal relationship from FDI to exports in the short run. Our results also confirm that the export-led growth (ELG) and FDI-led growth hypotheses hold true in the long and short run. To reinforce the FDI inflows, authorities should continue the progressive reduction of barriers, and increase the sophistication of quality exports to compete in the global market. This paper is the first of its kind to analyze the role of both FDI and exports in the ASEAN5 economies using panel analysis.     

Consumer heterogeneity in the longer-term effects of price promotions

While a significant literature has emerged recently on the longer-term effects of price promotions, as inferred from persistence models, there is very little if any attention paid to whether such longer-term effects vary across different types of consumers. This paper takes a first step in that direction by exploring whether the adjustment, permanent, and total effects of price promotions, and the duration of the adjustment period, differ between consumers segmented based on their usage rates in a product category and their loyalty to a brand. We also investigate whether such consumer segmentation will improve the forecasting performance of persistence models at both product category and brand levels. Expectations are developed based on consumer behavior theory on various effects of price promotions, such as the post-deal trough, the mere purchase effect, the promotion usage effect, and responsiveness to competitor's reactions. Evidence from household-level supermarket scanner data on four product categories is provided. We find substantial differences between consumer segments and provide insights on how managers can increase the longer-term effectiveness of price promotions by targeting each consumer segment with a different promotion program. In addition, consumer segmentation is found to significantly improve the forecasting performance of the persistence model for two of the four product categories. For the other two product categories, consumer segmentation provides forecasting performance similar to that obtained from aggregate-level persistence models.     

Consistency of a nonparametric estimation of a density functional

LetX be a random variable with distribution functionF and density functionf. Let ? and ψ be known measurable functions defined on the real lineR and the closed interval [0, 1], respectively. This paper proposes a smooth nonparametric estimate of the density functional \(\theta = \int\limits_R \phi (x) \psi \left[ {F (x)} \right]f^2 (x) dx\) based on a random sampleX ₁, ...,X _n fromF using a kernel functionk. The proposed estimate is given by \(\hat \theta = (n^2 a_n )^{ - 1} \mathop \sum \limits_{i = 1}^n \mathop \sum \limits_{j = 1}^n \phi (X_i ) \psi \left[ {\hat F (X_i )} \right]k\left[ {(X_i - X_j )/a_n } \right]\) , where \(\hat F(x) = n^{ - 1} \mathop \sum \limits_{i = 1}^n K\left[ {(x - X_i )/a_n } \right]\) with \(K (w) = \int\limits_{ - \infty }^w {k (u) } du\) . The estimate \(\hat \theta \) is shown to be consistent both in the weak and strong sense and is used to estimate the asymptotic relative efficiency of various nonparametric tests, with particular reference to those using the Chernoff-Savage statistic.     

Cooperation in collective action*

The ability to cooperate in collective action problems – such as those relating to the use of common property resources or the provision of local public goods – is a key determinant of economic performance. In this paper we discuss two aspects of collective action problems in developing countries. First, which institutions discourage opportunistic behaviour and promote cooperation? Second, what are the characteristics of the individuals involved that determine the degree to which they cooperate? We first review the evidence from field studies, laboratory experiments, and cross community studies. We then present new results from an individual level panel dataset of rural workers.     

Domestic demand and ability to export in developing economies: Some preliminary results

This note offers preliminary empirical evidence on the relationship between domestic demand and the ability to export in the developing economies. It utilizes the framework of the ‘Linder Thesis’ and its recent extensions in order to estimate the parameters of this relationship through regression analysis.