Gardiner C. Means's institutional and post-Keynesian economics

In this tribute to the work of Gardiner Means, we shall argue that his influence has been on a par with that of Keynes on economists of an unorthodox persuasion. It is argued that his pioneering work in studying the modern corporation as an institution that needs to be fully understood, renders him a first-rate institutionalist. Intriguingly, it is also suggested that his interest in the microeconomic foundations of macroeconomic performance are suggestive of post-Keynesian concerns.     

A practical approach to validating a PD model

The capital adequacy framework Basel II aims to promote the adoption of stronger risk management practices by the banking industry. The implementation makes validation of credit risk models more important. Lenders therefore need a validation methodology to convince their supervisors that their credit scoring models are performing well. In this paper we take up the challenge to propose and implement a simple validation methodology that can be used by banks to validate their credit risk modelling exercise. We will contextualise the proposed methodology by applying it to a default model of mortgage loans of a commercial bank in the Netherlands.     

Healthcare resource utilization and costs by age and joint location among osteoarthritis patients in a privately insured population

Aims: To compare healthcare resource utilization and costs between patients aged 18–64 years with osteoarthritis (OA) and matched controls without OA in a privately insured population.

Methods: Patients with OA were selected from de-identified US-based employer claims (Q1:1999–Q3:2011). The index date was defined as the first OA diagnosis indicated by ICD-9-CM codes. One year before and after the index date were defined as the baseline and study periods, respectively. A second OA diagnosis during the study period was also required. Patients with OA were matched one-to-one on age, gender, index date, and minimum length of follow-up to controls without OA. Baseline characteristics and study period resource utilization and costs (2016 USD) were compared between cohorts.

Results: This study identified 199,539 patients with OA (knee: 87,271, hip: 19,953, hand: 15,670, spine: 12,496). The average age was 54 years, and 58% were female. OA patients had higher healthcare resource utilization than matched controls in inpatient, emergency room, and outpatient settings (p?p?Limitations: This sample, obtained using claims data, only includes patients who were actively seeking care for OA and were likely symptomatic. Asymptomatic patients would likely not be captured in this analysis.

Conclusions: Patients with OA incur greater healthcare resource utilization and costs than patients without OA, with substantial variation by joint location.     

The Economic Role of Government as, in Part, a Matter of Selective Perception, Sentiment and Valuation: The Cases of Pigovian and Paretian Welfare Economics

This essay identifies and explores the role of selective perception, sentiment and valuation in the formation of economic policy, with particular reference to the conduct of policy-making under the aegis of Pigovian and Paretian welfare economics. First, we identify certain background conditions. Second, we present an argument with regard to the economic role of government. Finally, we apply the argument to Pigovian and Paretian welfare economic reasoning, showing first the equivalence of Pigovian and Paretian reasoning under particular assumptions and their non-equivalence under more realistic conditions, and then how the latter results give rise to selective perception, sentiment and valuation in the formation of economic policy.