Social orderings for the assignment of indivisible objects

In the assignment problem of indivisible objects with money, we study social ordering functions which satisfy the requirement that social orderings should be independent of changes in preferences over infeasible bundles. We combine this axiom with efficiency, consistency and equity axioms. Our result is that the only social ordering function satisfying those axioms is the leximin function in money utility.     

DIVIDED WE STAND,UNITED WE FALL: THE HUME‐NORTH‐JONES MECHANISM FOR THE RISE OF EUROPE*

The “great divergence” between Europe and the rest of the world occurred relatively recently. What enabled Europe, with all its laggards, to dominate the previously successful Eastern economies? This article emphasizes one important mechanism, highlighting the contrast between the European states system and Eastern empires. Political competition for a mobile tax base in a states system forces rulers to provide relatively more secure property rights. By effectively limiting the “exit” options of the ruled, an empire rewards its ruler with a captive tax base that can be subjected to higher levels of expropriation. As a result, the states system encourages faster capital accumulation and growth.     

Impact of completing chronic hepatitis C (CHC) treatment on post-therapy healthcare cost

Background:

Chronic hepatitis C (CHC) is associated with significant economic burden. This study evaluated the healthcare cost alleviation associated with treatment of CHC.

Methods:

Health insurance claims from 60 self-insured US companies were analyzed (01/2001–03/2012). Adult patients with ≥1 CHC diagnosis (ICD-9-CM: 070.44, 070.54), initiating interferon, and with ≥2 dispensings and with ≥48 weeks of follow-up were selected. Patients diagnosed with HIV or who completed only 24 weeks of interferon therapy (a surrogate for CHC genotypes 2 and 3) were excluded from the study. Interferon users were categorized into complete and discontinued therapy cohorts. During the post–48-week treatment period, cohorts were compared for healthcare resource utilization using rate ratios (RRs), as well as healthcare costs using per-patient per-year (PPPY) cost differences.

Results:

A total of 1017 patients who completed and 953 patients who discontinued interferon therapy were identified. Relative to the discontinued therapy cohort, the completed therapy cohort had significantly fewer hospitalizations (RR [95% CI]?=?0.74 [0.68, 0.81], p?p?p?=?0.039), which translated into significantly lower total healthcare costs PPPY (cost difference [95% CI]?=?$4540 [1570, 7680], p?=?0.004) and hospitalization costs (cost difference [95% CI]?=?$3039 [1140, 5248], p?=?0.002). Non–CHC-related costs accounted for 55% and CHC-related costs for 45% of the all-cause cost difference between cohorts.

Limitations:

Claims data may have contained inaccuracies, and genotypes of patients with CHC could not be confirmed. The study consisted of privately insured individuals and may not be generalizable to the entire CHC population.

Conclusion:

Compared to discontinued therapy patients, CHC patients who completed interferon therapy and presumably had a higher rate of achieving SVR were found to have lower levels of healthcare resource utilization and costs post-therapy. The reduction was primarily in costs associated with non–HCV-related comorbidities.     

The Value Relevance of Reputation for Sustainability Leadership

This study investigates whether the market valuation of the two summary accounting measures, book value of equity and net income, is higher for firms with reputation for sustainability leadership, when compared to firms that do not enjoy such reputation. The results are interpreted through the lens of a framework combining signalling theory and resource-based theory, according to which firms signal their commitment to sustainability to influence the external perception of reputation. A firm’s reputation for being committed to sustainability is an intangible resource that can increase the value of a firm’s expected cash flows and/or reduce the variability of its cash flows. Our findings are according to expectations and show that the net income of firms with good sustainability reputation has a higher valuation by the market, when compared to their counterparts.     

‘Joined-Up’ Policy-Making: Group Decision and Negotiation Practice

Creating public value is problematic in a world of austerity. Joint private and public, and public-public, projects are now an established way of creating public value. Establishing joint goals within a context of different ‘own goals’ is important and difficult. A particular issue facing many organisations in seeking to negotiate joint goals in a collaborative project is that of getting all the key managers from both organisations together over enough of a sequence of meetings for agreements to be meaningful and owned by those who will deliver the project. The development of such goals can be significantly enhanced by (1) using a Group Decision Support System (GDSS) and (2) using a powerful conceptualisation of a goals framework comprising: a goals system; ‘core goals’; ‘meta-goals’; ‘negative’ goals; and ‘above and beyond’ goals. In the case of negotiating joint goals the use of a GDSS has increased productivity to such an extent that powerful negotiated agreements can be achieved with all key managers in the room in as little as one meeting. The combination of high productivity, anonymity, and the structuring of the data has also facilitated the uncovering of ‘negative goals’, and the development of ‘meta-goals’ and ‘above and beyond’ goals. This paper uses three real cases to illustrate the significance of a Group Support System’s contribution and to illustrate the different types of goals. In doing so the paper suggests that facilitating such outcomes requires a carefully designed strategic conversation necessarily supported by a GDSS to enable group decision and negotiation in practice. Two of the cases are from public-public collaboration in the health field, and the other from a private-public setting.     

Geodesic normal distribution on the circle

This paper is concerned with the study of a circular random distribution called geodesic normal distribution recently proposed for general manifolds. This distribution, parameterized by two real numbers associated to some specific location and dispersion concepts, looks like a standard Gaussian on the real line except that the support of this variable is [0, 2π) and that the Euclidean distance is replaced by the geodesic distance on the circle. Some properties are studied and comparisons with the von Mises distribution in terms of intrinsic and extrinsic means and variances are provided. Finally, the problem of estimating the parameters through the maximum likelihood method is investigated and illustrated with some simulations.     

The “Services” Explanation for Resale Price Maintenance: Deleterious Results Missed in the Economics Literature and in Legal Decisions

Policy discussions and a U.S. Supreme Court decision interpret retailer services induced by retail price maintenance (RPM) as enhancing consumer surplus (CS) and welfare enhancing, marginalizing dissenting opinions that use similar models but with different parameters. However, if presales services stimulate demand by providing information about a product's value, they need not raise postsale value in use. Inframarginal consumers' presales perceived value may increase, but their postsale value may be unchanged, so their supposed CS gains are ephemeral, and their actual surplus falls proportional to price increase. We show that, even adding in gains to marginal consumers, effects on CS are far more negative than conceived of in this literature. Consequently, in a rule‐of‐reason antitrust environment, if RPM is challenged without alleging collusion or exclusion, presales demand‐inducing information provision is a flimsy defense if CS is the standard and not always convincing if total surplus is the standard.     

So Whaddya Think? Consumers Create Ads and Other Consumers Critique Them

With the availability of online creative tools, consumers create ad-like communications on their own or in response to company contests. These consumer-generated ads (CGA) are like word-of-mouth (WOM) in that they are consumer-to-consumer communications, yet they have the look and feel of traditional advertising. We examine consumer responses to both contest and unsolicited CGA and company ads using data gathered from consumers via netnography and depth interviews. Content analysis is used to compare the three ad types and reveals that the contest rules frame CGA so that they resemble company ads while unsolicited CGA differ from both ad types. Findings show that consumers respond to both types of CGA by engaging with the ad rather than the brand, much like an ad critic, while company ads elicit brand associations. Unsolicited CGA are seen as authentic, but not credible, while contest ads are seen as credible, but not authentic, revealing a boundary condition to the conventional view that authenticity leads to credibility.