Optimal Exchange Intervention in an Inflation Targeting Regime: Some Cautionary Tales

Devaluations and fiscal retrenchments coming from developed countries are buffeting less developed countries. Many emerging market countries have adopted inflation targeting as “best practice,” but now they are being advised to enhance their inflation targeting regimes with foreign exchange intervention. Here we use a DSGE model to tell some cautionary tales about this advice. A Taylor rule guides interest rate setting, while foreign exchange interventions are used as a second tool of monetary policy. These interventions are effective in our model since domestic and key currency bonds are imperfect substitutes. We derive optimal (Ramsey) intervention policies in response to foreign devaluations and fiscal retrenchments, and find that they are rather complex. So, we compare the optimal responses to policies that simply smooth real or nominal exchange rate movements. Our results suggest that discretion may be the better part of valor: pure inflation targeting may come closer to the optimal policy than exchange rate smoothing. A secondary result may also be of some interest: foreign exchange interventions have a stronger impact on inflation and output in an inflation targeting regime than do sterilized interventions; the Taylor rule augments the effects of a given intervention.     

A United Kingdom-based economic evaluation of ranibizumab for patients with retinal vein occlusion (RVO)

Objective:

This study compares the cost-effectiveness of intravitreal ranibizumab vs observation and/or laser photocoagulation for treatment of macular edema secondary to retinal vein occlusion in a UK-based model.

Methods:

A Markov model was constructed using transition probabilities and frequency of adverse events derived using data from the BRAVO, CRUISE, and HORIZON trials. Outcomes associated with treatments and health states were combined to predict overall health costs and outcomes for cohorts treated with each option.

Results:

In branch retinal vein occlusion, ranibizumab produced a gain of 0.518 quality-adjusted life years at an incremental cost of £8141, compared with laser photocoagulation. The incremental cost-effectiveness ratio was £15,710 per quality-adjusted life year, and the incremental cost per month free from blindness was £658. In central retinal vein occlusion, ranibizumab produced a gain of 0.539 quality-adjusted life years at an incremental cost of £9216, compared with observation only. The incremental cost-effectiveness ratio was £17,103, and the incremental cost per month free from blindness was £423.

Conclusions:

These incremental cost-effectiveness ratios are below the £20,000–30,000 range typically accepted as a threshold for cost-effectiveness. This suggests that ranibizumab may be regarded as a cost-effective therapy for patients with macular edema secondary to retinal vein occlusion, relative to grid laser photocoagulation (for BRVO) and observation (for CRVO). Limitations include sparse data for utilities associated with the severity of visual impairment in the WSE in patients with RVO. A lack of direct comparative evidence between ranibizumab and the dexamethasone intravitreal implant for the treatment of BRVO and CRVO and the infeasibility of an indirect comparison due to significant heterogeneity in trial designs prevented the inclusion of this treatment as a comparator in the Markov model.     

The Influence of Business Ethics Education on Moral Efficacy,Moral Meaningfulness,and Moral Courage: A Quasi-experimental Study

The research described here contributes to the extant empirical research on business ethics education by examining outcomes drawn from the literature on positive organizational scholarship (POS). The general research question explored is whether a course on ethical decision-making in business could positively influence students’ confidence in their abilities to handle ethical problems at work (i.e., moral efficacy), boost the relative importance of ethics in their work lives (i.e., moral meaningfulness), and encourage them to be more courageous in raising ethical problems at work even if it is unpopular (i.e., moral courage). Specifically, the study used a rigorous quasi-experimental pretest–posttest research design with a treatment (N = 30) and control group (N = 30) to investigate whether a graduate-level course in business ethics could influence students’ levels of moral efficacy, meaningfulness, and courage. Findings revealed that participants in the business ethics treatment course experienced significant positive increases in each of the three outcome variables as compared to the control group. The largest increase was in moral efficacy, followed by moral courage, and finally, moral meaningfulness. These findings are discussed in the context of the current research on business ethics education and POS. Implications for future research are discussed.     

Revisiting the entrepreneur gender–performance relationship: a firm perspective

Research shows that firms started by women underperform those started by men but the relationship may not be as straightforward as previously thought. Using a sample of 4,540 Korean ventures in 2002 we investigated the effects of three firm characteristics—resources, industry, and regional location—on firm performance. Results indicate that firms started by male entrepreneurs, compared to female, have greater firm assets, compete in high-technology manufacturing industries, and are more likely to locate in clustered regions. Further, these firm characteristics are positively associated with domestic and international firm performance. Findings suggest firm resource and context characteristics fully mediate the entrepreneur gender–firm performance relationship. Overall, gender is not a determinant of domestic or international firm performance.     

Making it personal: Opportunity individuation and the shaping of opportunity beliefs

We develop a model that focuses on the individuation of opportunity beliefs. We adopt inferences from the ecology literature and integrate those with mental model theory to examine the ‘individuation’ of opportunity as the result of the interplay between industry conditions and person-specific factors. We test our predictions using conjoint analysis of 2880 opportunity decisions. We find that an entrepreneur's related knowledge, motivation to evaluate the opportunity, prior failure, and fear of failure shape perceptions of opportunity attractiveness as one individuates exogenous opportunity information. We articulate our findings as evidence that when combined with opportunity related data, an individual's cognitive resources play an important role as one forms opportunity beliefs about the personal attractiveness of pursing an opportunity.     

A Hausman–Taylor instrumental variable approach to the penalized estimation of quantile panel models

This paper proposes an _?1${?}_1$ penalized quantile regression estimator which adapts the Hausman–Taylor instrumental variable approach in order to address the bias resulting from the shrinkage of the individual effects.     

Parchment,guns, and the problem of governance

The genuine problem of governance is one that pays equal attention to both incentive and knowledge issues in private and public contexts. This work brings together Austrian, Public Choice and theory of the firm insights to address such problem. By taking into account incentives and knowledge, it proposes a framework that accommodates comparisons not just of kind (firm or market), but also of degree (e.g., among different types of internal organization). Moreover, although the suggested framework derives from considerations about private governance, it equally accommodates public and private settings. (89 words.)     

Pipeline congestion and basis differentials

In the U.S., natural gas pipeline transport has undergone a wave of deregulatory actions over the past several decades. The underlying motive has been the presumption that removing regulatory frictions would facilitate spot price arbitrage, helping to integrate prices across geographic locations and improve efficiency. Yet certain frictions, specifically the effect of congestion on transportation costs, inhibit positive deregulatory impacts on efficiency. With the increase in domestic production and consumption of natural gas over the coming decades, upward pressure on the demand for transport will likely result in an increased occurrence of persistently congested pipeline routes. In this paper we explore the relationship between congestion and spot prices using a simple network model, paying particular attention to the influence of storage. We find that as congestion between two hubs increases, the scarcity value of transmission capacity rises, driving a wedge between spot prices. We empirically quantify this effect over a specific pipeline route in the Rocky Mountain region that closely resembles our structural design. Although our results paint a stark picture of the impact that congestion can have on efficiency, we also find evidence that the availability of storage mitigates the price effects of congestion through the intertemporal substitution of transmission services.     

Migration and farm technical efficiency: evidence from Kosovo

This article investigates the effect of migration on farm technical efficiency drawing on a large and representative sample of agricultural households in Kosovo. A two‐stage estimation procedure is applied: a frontier technique to estimate the effect of migration on farm efficiency, followed by a propensity score based matching approach to robustly estimate the sample average effect on efficiency for different levels of migration intensity. Migration is found to have an efficiency decreasing effect, which is amplified for better educated workers. The observed negative effect of migration on efficiency is evident even at low levels of migration intensity.     

Advertising strategy for outbound travel services

When purchasing a travel service, consumers perform multiple information searches. Depending on the accessed information and the type of media for travel service advertisements, consumers make different evaluations on the travel service. Given this context, we propose a consumer persuasion model that reveals the most effective persuasion process for consumers to make purchasing decisions on travel services. For this study, we conducted a comparative analysis to discern effectiveness and limitations between newspapers and TV infomercials; the two major media for travel service advertisements. Based on the results from the analysis, we drew some meaningful managerial implications for travel service advertising strategy.