Development planning in The Gambia: The gap between planners' and farmers' perceptions,expectations and objectives

This paper challenges the prevalent view that irrigation development largely depends on engineering, agricultural and managerial inputs and argues with reference to Gambian irrigation projects that new technologies may be adapted by farmers in ways that are incompatible with planners' objectives. The conclusion is that planners need to give greater attention to the organization and control of production and consumption within the household. This would require a change in attitudes among many planners, the recruitment of more social scientists into planning teams, and greater co-operation between planners, farmers of all socio- economic categories and extension agents.     

Bid ask spread in a competitive market with institutions and order size

Large orders, particularly from institutions, are quite common these days and hence there is interest to know if institutional trading has any bearing on the price effect associated with large trades. Recent empirical studies contradict earlier evidence of negative price effect on selling large blocks and find no price effect associated with large trades. Existing theoretical framework suggests a monotonic and increasing adverse price effect for large trades, where the motivation for a large trade is private information. We model a trading system where pure information, information-liquidity, and pure liquidity traders trade small and large sizes. The pure information traders strategically choose an order size. Institutions trade only large sizes because of their low execution costs for large trades; they are information-liquidity traders whose ability to use an information signal to determine their trades is subject to a binding liquidity constraint. We show that in such a market a separating equilibrium where trade size is informative does not exist and hence there is no price effect for large trades. Trade size may be revealing only if there is a buy sell asymmetry (large buy size is not equal to large sell size) or the corresponding price effect is asymmetric (price effect due to a large buy is not equal to that of a large sell). Further for a pooling equilibrium to exist, where trade size is not informative, the width of the market denoted by the ratio of order size (large size/small size) needs to be small, while the shallowness (inverse depth) of the market denoted by the ratio between pure information and institutional trades and the information signal needs to be stronger (higher). Our results on bid and ask prices and spread confirm recent empirical evidence on price effect of large and institutional trades found in the literature.

Inspiring employees' ecological behaviors: The roles of corporate environmental strategy,biospheric values,and eco-centric leadership

The consequences of environmental degradation have steered organizations to promote pro-ecological behaviors among their employees, and achieving this effectively is paramount for business and environmental sustainability. Applying a multilevel integrated approach, this study investigates the impact of corporate environmental strategy, biospheric values, and eco-centric leadership on employees' ecological behaviors. A self-administered questionnaire was used to collect data from 289 employees from a cross section of industries in Bangladesh. The findings reveal the significant influences of environmental strategy and biospheric values on employees' ecological behaviors as well as the moderating role of eco-centric leadership. The study also provides some significant insights for formulating environmental strategy and inspiring employees' ecological behaviors in organizational contexts. Theoretical and managerial implications as well as future research directions have also been provided.     

Household search and health insurance coverage

Health insurance in the United States is typically acquired through an employer-sponsored program. Often employees offered employer-provided health insurance have the option to extend coverage to their spouse and dependents. We investigate the implications of the “publicness” of health insurance coverage for the labor market careers of spouses. The theoretical innovations in the paper are to extend the standard partial–partial equilibrium labor market search model to a multiple searcher setting with the inclusion of multi-attribute job offers, with some of the attributes treated as public goods within the household. The model is estimated using data from the Survey of Income and Program Participation (SIPP) using a Method of Simulated Moments (MSM) estimator. We demonstrate how previous estimates of the marginal willingness to pay (MWP) for health insurance based on cross-sectional linear regression estimators may be seriously biased due to the presence of dynamic selection effects and misspecification of the decision-making unit.     

Corporate Governance Reform and Executive Incentives: Implications for Investments and Risk Taking

We investigate the mechanism through which the Sarbanes Oxley Act (SOX) was associated with changes in corporate investment strategies. We document that the passage of the governance regulations in SOX was followed by a significant decline in pay‐performance sensitivity (Delta) and incentives to take risk (Vega) in CEOs' compensation contracts. These changes in compensation contracts are related to a decline in investments, including research and development expenditures, capital investments and acquisitions. Moreover, consistent with the rules in SOX directly affecting CEOs' incentives to take risk, we document that the decline in investments exceeds the amount that would be expected from changes in compensation packages alone. Finally, we also find evidence that the changes in investments are related to lower operating performances of firms, suggesting that these changes were costly to investors. Our evidence speaks to the debate on how corporate governance regulation interacts with firms' and managers' incentives, and ultimately affects corporate operating and investment strategies. Our study suggests that one indirect cost of such regulations in SOX is the significant reductions in corporate risk‐taking activities in the post‐SOX period. The changes in investments were in part due to changes in executive compensation contracts and in part related to increased executives' personal costs of engaging in risky activities.     

Some Aspects Of Neutral To Right Priors

Neutral to right priors are generalizations of Dirichlet process priors that fit in well with right-censored data. These priors are naturally induced by increasing processes with independent increments which, in turn, may be viewed as priors for the cumulative hazard function. This connection together with the Lévy representation of independent increment processes provides a convenient means of studying properties of neutral to right priors.
This article is a review of the theoretical aspects of neutral to right priors and provides a number of new results on their structural properties. Notable among the new results are characterizations of neutral to right priors in terms of the posterior and the cumulative hazard function. We also show that neutral to right priors are of the following nature: Consistency of Bayes' estimates implies consistency of the posterior, and posterior-consistency for complete observations automatically yields posterior-consistency for right-censored data.     

Small asymmetric fractional factorial plans for main effects and specified two-factor interactions

Fractional factorial plans represented by orthogonal arrays of strength two are known to be optimal in a very strong sense under a model that includes the mean and all the main effects, when all interactions are assumed to be absent. When a fractional factorial plan given by an orthogonal array of strength two is not saturated, one might think of entertaining some two-factor interactions also in the model. In such a situation, it is of interest to examine which of the two-factor interactions can be estimated via a plan represented by an orthogonal array, as also to study the overall efficiency of the plan when some interactions are in the model alongwith the mean and all main effects. In this paper, an attempt has been made to examine these issues by considering some practically useful plans for asymmetric (mixed level) factorials with small number of runs.     

Inventory of differential items selling from two shops under a single management with periodically increasing demand over a finite time-horizon

Inventories of differential items including the defective ones purchased/produced in a lot and sold from two shops (primary and secondary shops) under a single management are considered here over a finite time-horizon. A primary shop receives the differential units in a lot but sells only the non-defective ones whose demand periodically increases with time and decreases during the shortage period in such a way that it comes back to the initial value at the beginning of the next cycle. Hence in this shop, shortages are allowed and fully backlogged. Moreover, at the beginning of the next cycle, the retailer purchases purely non-defective units at a higher price to meet up the shortage amount along with the usual lot of differential units for regular sale. The defective units identified at the time of selling at the primary shop are continuously transferred to the adjacent secondary shop from which the defective ones are sold at a reduced price after some rework. Normally, the price of a defective item is fixed depending upon the quantum of its defect and people go for these items if they are cheap. Hence, demand for these units is dependent on the selling price, which is again inversely proportional to the rate of defectiveness. There may be five scenarios for dealing with defective units depending upon the coincidence of the time periods at two shops. For all scenarios, problems have been mathematically formulated and solved by the use of both parametric study and a gradient-based non-linear optimisation method. The models are illustrated with the help of numerical examples.     

Priority setting for research on aquatic resources: an application of modified economic surplus analysis to natural resource systems

In contrast to research on farming systems, research on natural resource systems seldom applies rigorous priority setting techniques, mainly due to difficulties associated with estimating research impact ex ante for such systems. This article presents a replicable approach to priority setting that addresses these difficulties. Assessment is based on multiple criteria, combining economic surplus analysis with subjective scoring, based on information drawn from a cross‐country survey of expert opinion. The approach is applied to the WorldFish Center, a global agricultural research organization focusing on living aquatic resources, both farmed and wild. The exercise demonstrates the relevance of conventional evaluation techniques to fisheries research based on a practical application of its impact pathways.     

Impact of market orientation on firm’s customer-based performance: the moderating role of employee orientation

ABSTRACT

In this paper, we examine the influence of employee orientation (EO) on converting constituent dimensions of market orientation (MO) into customer-based performance (CBP) and consider the robustness of these relationships in the context of firm age and size. Based on a sample of 410 mid-to-senior-level managers working in UK service industries, we find that all three dimensions of MO positively influence CBP. While highlighting the utility of employing a multidimensional approach to evaluate the customer-based outcome of MO implementation we highlight the nuanced role of EO in strengthening the MO–performance relationship and emphasise the crucial role employees play in implementing different strategic orientations in a perceivable way to customers.