Grid Parity and Cost Reduction Incentives for “Green Producers” in Electricity Markets

In an electricity market, a feed-in tariff promotes attainment of a so-called “green quota” through a system of subsidies designed to ensure renewable energy investors a “normal rate-of-return”. However, the subsidies should track technological advances closely with the expectation that they will be phased out when the renewable technology reaches an appropriate “maturity threshold” (i.e., grid parity). Grid parity is typically defined as the point where the levelized cost of electricity equals the price of purchasing electricity from the grid. However, it has been recognized that this definition of grid parity is flawed due to the intermittent nature of many renewable resources. We propose a definition which allows us to distinguish between grid parity and least-cost grid parity. We demonstrate that under a green quota and an emissions cap, welfare may be higher if the policy maker forgoes least-cost grid parity and phases out the feed-in system sooner rather than later. We show that while green producer cost reduction incentives under the feed-in tariff are perverse, they can be restored by offering a “menu” of values of the policy variables and allowing full discretion in terms of the decision to engage in cost-padding, pure waste, etc.     

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 implementation of organic principles and values in the European Regulation for organic food

The paper is based on selected findings of the research project EEC 2092/91 (Organic) revision. It contributes to an improved understanding of the core ethical values associated with and principles of organic farming, analyses reference to such values in the European Regulation (EEC) 2092/91 and its ongoing revision, and contrasts them with current practice of organic agriculture. An analysis of differences in the implementation of the Regulation by national governments and private standards is presented. Ethical values are per se in need of interpretation, so the final section sets out procedural issues arguing for a deliberative model of decision-making, when aiming to achieve a coherent integration in the structure of a regulation.     

Äquivalenz von Axiomen in der Theorie der rationalen Wahl

Zusammenfassung Unter der Bezeichnung Schwaches bzw. Starkes Axiom der Theorie der Revealed Preference treten in der Literatur verschiedene Forderungen auf. Es kann jedoch gezeigt werden (siehe Abschnitt III), daß zwischen ihnen ein unmittelbarer Zusammenhang besteht. Wie Gale nachgewiesen hat, ist Äquivalenz zwischen dem Starken und dem Schwachem Axiom nicht allgemein gegeben. Jedoch können Bedingungen für eine solche gefunden werden (vgl. Abschnitt IV). Unter diesen Voraussetzungen besteht auch Äquivalenz zwischen den genannten Axiomen und Richters Kongruenzaxiom (vgl. Abschnitt IV).     

The effects of shocks on the Austrian unemployment rate – a structural VAR approach

Assuming full hysteresis in the Austrian labour market, a simple macroeconomic framework is used to model the effect of four structural shocks, i.e. shocks to productivity, demand, wages and labour supply. By using SVAR analysis, we derive impulse-response functions that show the effects of these shocks on unemployment. What constitutes a distinctive feature of our study is the deliberate use of overidentifying restrictions, allowing for a likelihood ratio test. The objection to SVAR methodology, that it relies on arbitrary assumptions, can thus be overcome, as invalid sets of identifying restrictions are rejected. First version received: September 2000/Final version received: March 2002 RID="*" ID="*"  I thank Juan F. Jimeno, Martin Wagner, Helmut Hofer and Bernhard B?hm for their assistance; Robert Kunst and Martin Spitzer for their discussion of an earlier version of this paper; Thomas Sparla, Michael Roos and two anonymous referees for their helpful comments.     

Strategic development of third party logistics providers

The growth of the Third Party Logistics (TPL) business has caused many firms from different industries to enter the field. We are interested in how their different strategies develop over time with a special focus on how they balance between general problem solving capability and the degree of customer adaptation. In the development of their strategy the newly entered firms shown to be highly influenced by existing business and its network. However, at a later stage the case firms were all focused on moving into more advanced and complex services (4pl type of services) without considerations to their traditional business strategy. We have also identified some issues of importance when managing the continued TPL business strategy. One issue is about the organisation of the TPL business and its need for neutrality from traditional business. The next issue is about the internationalisation of the TPL business and the need of a partly different pattern and network. Finally, the issue of coping with strategic alliances, mergers and acquisitions seems vital for understanding and developing the business.     

Performance Differences in German Higher Education: Empirical Analysis of Strategic Groups

Initial investments and different strategic actions of universities lead to their different positions in the higher education sector. Pursuing similar strategies leads to similar positions that influence structure and performance within the system. Institutions cannot only choose to focus on research or on teaching, but also to focus either on natural sciences or social sciences. Using 73 public universities in Germany, this paper examines the existence of strategic groups based on performance. Common strategic variables only partly determine performance in high and low efficiency groups.     

Politische Rahmenbedingungen als Ursachen niedriger Geburtenraten

Angesichts der drohenden Belastungen durch den demographischen Wandel müht sich die Politik um eine Anhebung der niedrigen Geburtenraten. Wie aber wirken sich die steuer-, transfer- und arbeitsmarktpolitischen Maßnahmen auf die Familienbildung aus? Kann man einen tatsächlichen Zusammenhang zwischen den politischen Rahmenbedingungen und den niedrigen Geburtenraten erkennen?Nicola Hülskamp, 30, Dipl.-Volkswirtin, und Susanne Seyda, 33, Dipl.-Volkswirtin, sind Mitarbeiterinnen des Instituts der Deutschen Wirtschaft Köln.     

Environmental reporting by the Fortune Global 250: exploring the influence of nationality and sector

While research on environmental reporting frequently includes large multinational enterprises, the number of surveys that systematically analyses a whole set of such firms, including the non‐reporters, is limited – and mainly focuses on the United States. This article presents the state of environmental reporting by the Fortune Global 250, all large multinationals with a potentially large impact on other firms. Of these 250 firms, 35% has a recent environmental report, with another 32% publishing other types of environmental information. Reporting frequencies between the financial and non‐financial sector differed considerably, at 15 and 44% respectively. Besides an analysis of the number and contents of environmental reports, the importance of sectoral differences and firms' nationality is also considered. A framework is developed that posits the existence of reporting legislation in firms' home countries (some in place/pending, or none) against the direct environmental impact of the sector (large or small). The results of the analysis fit partially in this framework. Only a small number of reporting firms originates from countries with some kind of legislation (particularly The Netherlands), but national societal pressure seems to play a large role (especially in the UK, The Netherlands and Germany). Many operate in sectors with a substantial direct environmental impact (chemicals, pharmaceuticals, oil and motor vehicles and parts); reporting in sectors with more indirect effects is getting off the ground. Copyright © 2001 John Wiley & Sons, Ltd and ERP Environment     

The knowledge production of ‘R’ and ‘D’

Many studies investigate the relationship between R&D and patents applying knowledge production functions. Using aggregated R&D may underestimate the productivity of ‘R’, as mainly ‘R’ but not ‘D’ leads to patents. Disaggregating ‘R’ and ‘D’ shows a significant premium of ‘R’ towards patenting.