A stochastic cellular automata model of innovation diffusion

A stochastic cellular automata model of new product diffusion is proposed. It is found that the growth for a given market potential can be determined by a parameter that quantifies chance preferences of individuals for the product and can be estimated from field surveys. It is also found that the “takeover time” in a given seed region is almost independent of the number of innovators. The results suggest possible strategies for the successful introduction of a new product.     

A non-homogeneous non-uniform influence model of innovation diffusion

A model of innovation diffusion which gives unequal weightage to the adopters of different temporal stages and captures commonly observed ups and downs in new product diffusion is proposed. It is shown that our model possesses features of the existing flexible diffusion models and shows better fit which is indicated by the values of R²_adj, mean absolute deviation, and mean percentage error and estimates a larger market potential, M. It has an interesting feature of conversion factors, first increasing then vanishing, much before we approach market saturation, implying that there is a scope of new thrust in converting remaining potential adopters.     

Information dynamics effects from major world markets to SAARC nations

This paper investigates the impact of major world equity markets on four founding countries of the South Asian Association for Regional Cooperation (SAARC). With a population of 1.47 billion, SAARC is the largest regional organization in the world. However, the issue of global integration of equity markets of the SAARC nations has largely been ignored. This study fills this important gap, adding results towards the ongoing debate concerning the issue of global market integration. After the onset of the financial crises of 2008, this issue is imperative. VAR analysis is used to determine whether there is any dependency of SAARC return on the performance of world equity markets. Further, GARCH-in-mean modeling is used to determine whether there is any evidence of Volatility spillover. It is found that volatility in major world markets do not impact returns in SAARC nation, but ample evidence of volatility spillover is found for India, Bangladesh and Sri Lanka. Similar results are not obtained for Pakistan.     

The impact of mean reversion of bank profitability on post-merger performance in the banking industry

This research study examines the tendency for serial correlation in bank holding company profitability, finding significant evidence of reversion to the industry mean in profitability. The paper then considers the impact of mean reversion on the evaluation of post-merger performance of bank holding companies. The research concludes that when an adjustment is made for the mean reversion, post-merger results significantly exceed those of the industry in the first 5 years after the merger.     

A novel hybrid multi-criteria method for supplier selection among SMEs on the basis of innovation ability

Today, small and large business houses operate collaboratively for the efficiency in the functioning of supply chains. Larger organisations mostly depend on small companies to supply majority of its components and thus they need to be careful while selecting their suppliers. Small organisations performing innovatively and supplying technologically upgraded as well as quality products at a cheaper rate can be a boon for the larger enterprise. This study develops a model for evaluating and selecting small firms as suppliers on the basis of their innovativeness. Best–Worst multi-criteria method is used to rank criteria of innovativeness and also to calculate their weights on the basis of expert opinion. Fuzzy TOPSIS methodology is used to rank the suppliers with respect to these criteria and finally select the best supplier among the available alternatives. A real-world application is illustrated by taking a case of auto component manufacturer and its seven suppliers, 5 main criteria and 23 sub-criteria are taken up for the study.

Abbreviations: AHP: analytical hierarchal process; ANP: analytical network process; DEMATEL: decision-making trail and evaluation laboratory; EMS: environment management system; ELECTRE: ELimination Et Choix Traduisant la REalité (elimination and choice expressing reality); FPIS: fuzzy positive ideal solution; FNIS: fuzzy negative ideal solution; ISM: interpretative structural modelling; PROMTHEE: preference ranking organisation method for enrichment evaluation; SME: small and medium enterprises; TOPSIS: technique for order preference by similarity to ideal solution; QFD: quality function deployment; VIKOR: VlseKriterijuska Optimizacija I Komoromisno Resenje; SP1; SP2; SP3; SP4; SP5; SP6; SP7: Various suppliers used as alternatives     

Antecedents and Consequences of Employer Branding

This study reviewed and analysed the phenomenon of employer branding. We began with a review of recent research in employer branding. Next, drawing the theoretical knowledge from OB, HRM, and marketing, a framework is developed depicting the antecedents of employer branding and its impact on the company performance. For this, primary data were collected administering a questionnaire survey on 347 top-level executives in 209 companies in India, and secondary data were collected on financial performance. The results revealed that realistic job previews, perceived organizational support, equity in reward administration, perceived organizational prestige, organizational trust, leadership of top management, psychological contract obligations, and corporate social responsibility influence employer branding, which in turn impact non-financial and financial performance of companies. Furthermore, leadership of top management is the most potent predictor of employer branding. Greater deviation of the existing state from the ideal state of antecedents adversely affects employer branding. Management can use this framework for developing strategy towards implementation of employer branding.     

Domestic violence and women's autonomy in developing countries: theory and evidence

Abstract This paper sets out a simple non‐cooperative model of resource allocation within the household in developing countries that incorporates domestic violence as a vehicle for enhancing bargaining power. We demonstrate that the extent of domestic violence faced by women is not necessarily declining in their reservation utilities, or necessarily increasing in their spouses’. Using the National Family Health Survey data of India for 1998–99, we isolate the effect of domestic violence on female autonomy, taking into account the possible endogeneity of domestic violence through the choice of appropriate instruments. We provide some evidence for the evolutionary theory of domestic violence, which argues that such violence stems from the jealousy caused by paternity uncertainty in our evolutionary past. The findings have strong policy implications suggesting that it will take more than an improvement in women’s employment options to address the problem of spousal violence.     

Benchmarking Indian banks using DEA in post-reform period: a progressive time-weighted mean approach

The ranking of banks based on single period data could mislead the management as well as customers, as many one-time influences may wrongly portray banks with lasting strategy. This study uses data envelopment analysis (DEA) models to rank Indian banks based on their performance over 13 years of post-reform period by using the progressive time-weighted means of variable benchmarking super-efficiency scores. Furthermore, the relative performances of these banks are evaluated against the ‘best practice’ bank by using the fixed benchmarking DEA model. The results show no statistical evidence of dominance of either public sector banks over private sector banks or vice-versa when their efficiencies are evaluated with the common frontier. However, the variations in efficiency across the public sector banks are comparatively less as compared with private sector banks. The efficiency based on the ownership frontier further supports our argument that the public sector banks are relatively more consistent in their performance over the years as well as across the banks. The results show a huge difference in the ranking of some of the banks when the usual method of ranking is compared with progressive time-weighted mean approach, where the performance of the banks over the years is taken into account.