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31.
Evangelos Rouskas 《Bulletin of economic research》2023,75(2):270-286
Under the simplifying conditions of product homogeneity, linear demand, symmetric and constant marginal costs, the static Cournot–Nash equilibrium predicts that exogenous horizontal mergers generate losses for the participants if the participants represent less than 80% of the firms in the industry. I successfully challenge the applicability of this well-known merger paradox to markets for durable goods by introducing Coasian dynamics to the quantity competition, while maintaining all other simplifying conditions. I demonstrate that exogenous mergers with a relatively small number of insiders in industries with a relatively large initial number of firms can be profitable as long as the common discount factor is sufficiently high and the decision-making horizon is sufficiently long. Unlike previous research on mergers in durable-goods industries, the significance of the decision-making horizon is emphasized; mergers that are unprofitable in a short-horizon version of my model for all values of the discount factor can prove profitable in a long-horizon version provided that agents are sufficiently patient. 相似文献
32.
A translog estimation of the average cost function of the steel industry with financial accounting data 总被引:1,自引:0,他引:1
Theo Stratopoulos Evangelos Charos Kelly Chaston 《International Advances in Economic Research》2000,6(2):271-286
This paper proposes a measure to assess firm performance which is based in neoclassical production theory and yet can be empirically estimated with widely available financial accounting ratios. A translog cost function is estimated, and fitted per-unit average cost figures are generated based upon the firm's individual characteristics and industry norms. The deviation of a firm's actual average per-unit cost from the fitted value is proposed as a predictor of firm profitability. This measure is then tested on firms in the steel industry. It is shown that the accounting ratios generate a cost function which behaves in accordance with neoclassical microeconomic theory, and accounting profits are indeed found to be inversely related to the calculated efficiency measure.The authors are indebted to the participants of the Forty-Fourth International Atlantic Economic Conference, Philadelphia, PA, October 9–12, 1997, and an anonymous referee. Any shortcomings remain the responsibilities of the authors. 相似文献
33.
34.
Evangelos Terpos Aurelien Jamotte Alexandra Christodoulopoulou Marco Campioni Debajyoti Bhowmik Lisa Kennedy 《Journal of medical economics》2019,22(8):766-776
Aim: The approved indication for denosumab (120?mg) was expanded in 2018 to include skeletal-related event (SRE) prevention in patients with multiple myeloma (MM). Therefore, a cost-effectiveness analysis was conducted comparing denosumab with zoledronic acid (ZA) for SRE prevention in patients with MM from the national healthcare system perspective in a representative sample of European countries: Austria, Belgium, Greece, and Italy.Methods: The XGEVA global economic model for patients with MM was used to calculate incremental cost-effectiveness ratios (ICERs) for denosumab vs ZA over a lifetime horizon. Clinical inputs were derived from the denosumab vs ZA randomized, phase 3 study (“20090482”) in patients newly-diagnosed with MM, and comprised real-world adjusted SRE rates, serious adverse event (SAE) rates, treatment duration, dose intensity, progression-free survival (PFS), and overall survival (OS). Economic inputs comprised country-specific denosumab and ZA acquisition and administration costs, SRE and SAE management costs, and discount rates. Health utility decrements associated with MM disease progression, SRE and SAE occurrence, and route of administration were included.Results: Estimated ICERs (cost per quality-adjusted life-year [QALY] gained) for denosumab vs ZA in Austria, Belgium, Greece, and Italy were €26,294, €17,737, €6,982, and €27,228, respectively. Using 1–3 times gross domestic product (GDP) per capita per QALY as willingness to pay thresholds, denosumab was 69–94%, 84–96%, 79–96%, and 50–92% likely to be cost-effective vs ZA, respectively.Limitations: Economic inputs were derived from various sources, and time to event inputs were extrapolated from 20090482 study data.Conclusions: Denosumab is cost-effective vs ZA for SRE prevention in patients with MM in Austria, Belgium, Greece, and Italy, based on often-adopted World Health Organization thresholds. This conclusion is robust to changes in model parameters and assumptions. Cost-effectiveness estimates varied across the four countries, reflecting differences in healthcare costs and national economic evaluation guidelines. 相似文献
35.
This article examines the evolution of social security research from a theoretical and empirical perspective. This is done through an extensive review and analysis of publications from the Journal of International Social Security Review published by Wiley within a 50-year period (1967–2017). It was observed that at a different period in time, the social security research focused on different national and international issues that invoked different social welfare programs and pension systems approach (public or private) to facilitate the explanation of its final socio-economic impact into different social groups in the same country or region respectively. 相似文献
36.
Noopur Raje Garson David Roodman Wolfgang Willenbacher Kazuyuki Shimizu Ramón García-Sanz Evangelos Terpos 《Journal of medical economics》2018,21(5):525-536
Objective: A large, pivotal, phase 3 trial in patients with newly diagnosed multiple myeloma (MM) demonstrated that denosumab, compared with zoledronic acid, was non-inferior for the prevention of skeletal-related events (SREs), extended the observed median progression-free survival (PFS) by 10.7 months, and showed significantly less renal toxicity. The cost-effectiveness of denosumab vs zoledronic acid in MM in the US was assessed from societal and payer perspectives.Methods: The XGEVA Global Economic Model was developed by integrating data from the phase 3 trial comparing the efficacy of denosumab with zoledronic acid for the prevention of SREs in MM. SRE rates were adjusted to reflect the real-world incidence. The model included utility decrements for SREs, administration, serious adverse events (SAEs), and disease progression. Drug, administration, SRE management, SAEs, and anti-MM treatment costs were based on data from published studies. For the societal perspective, the model additionally included SRE-related direct non-medical costs and indirect costs. The net monetary benefit (NMB) was calculated using a willingness-to-pay threshold of US$150,000. One-way deterministic and probabilistic sensitivity analyses were conducted.Results: From a societal perspective, compared with zoledronic acid, the use of denosumab resulted in an incremental cost of US$26,329 and an incremental quality-adjusted life-year (QALY) of 0.2439, translating into a cost per QALY gained of US$107,939 and a NMB of US$10,259 in favor of denosumab. Results were sensitive to SRE rates and PFS parameters.Limitations: Costs were estimated from multiple sources, which varied by tumor type, patient population, country, and other parameters. PFS and overall survival were extrapolated beyond the follow-up of the primary analysis using fitted parametric curves.Conclusion: Denosumab’s efficacy in delaying or preventing SREs, potential to improve PFS, and lack of renal toxicity make it a cost-effective option for the prevention of SREs in MM compared with zoledronic acid. 相似文献
37.
Evangelos Vagenas-Nanos 《Financial Management》2020,49(1):91-133
Theoretical and empirical evidence debates whether acquirers can exploit their overvalued equity and create value by purchasing less overvalued or undervalued target firms. Shleifer and Vishny (2003) and Savor and Lu (2009) argue in favor of this, while Fu, Lin, and Officer (2013) and Akbulut (2013) provide evidence against. I revisit this issue and develop a quasi-experimental design. The misvaluation effect for stock acquirers that are more overvalued than their targets is isolated and measured. My findings offer direct evidence in favor of the Shleifer and Vishny (2003) market-timing hypothesis. 相似文献
38.
Evangelos V. Dioikitopoulos 《The Canadian journal of economics》2014,47(4):1173-1194
In this paper, I develop an overlapping generations endogenous growth model in which both public education and health are sources of growth by affecting the accumulation rate of the human capital stock and the savings rate over life expectancy. I first find that dynamic complementarities of public expenditures lead to minimum threshold levels of public education and health expenditures that ensure sustainable growth. I then show how governments can use the allocation of public expenditures as an alternative policy instrument to maximize growth without increasing the tax rate or the retirement age, as usually happens in aging economies. 相似文献
39.
This paper evaluates the impact of accounting and market-driven information on the prediction of bankruptcy for Greek firms using the discrete hazard approach. The findings show that a hazard model that incorporates three accounting ratio components of Z-score and three market-driven variables is the most appropriate model for the prediction of corporate financial distress in Greece. This model outperforms a univariate model that uses the expected default frequency (EDF) derived from the Merton distance to default model, a multivariate model that is exclusively based on accounting variables, a model that combines the EDF and accounting variables, and a multivariate model that uses only market-driven variables. Classification accuracy and bankruptcy forecast tests confirm the main results. The model is also able to sustain high long-term performance when augmenting the forecast horizon from one to two and three years. 相似文献
40.
Efthimios Tambouris Maria Zotou Evangelos Kalampokis Konstantinos Tarabanis 《International Journal of Training and Development》2012,16(2):128-136
Enterprise architecture (EA) implementation refers to a set of activities ultimately aiming to align business objectives with information technology infrastructure in an organization. EA implementation is a multidisciplinary, complicated and endless process, hence, calls for adequate education and training programs that will build highly skilled personnel (called enterprise architects) with diverse competencies. This development of domain‐specific competencies is also supported by European policies on education and vocational training. To this end, the authors present training uses of the Enterprise Architecture Competence Framework (EA‐CF). EA‐CF is a proposed conceptual model that describes EA competencies in compliance to the European e‐Competence Framework (e‐CF). The authors argue that EA stakeholders can consult the framework regarding competencies they want to underpin and thus identify the corresponding skills, knowledge and attitudes that result as learning outcomes in EA courses and training programs. 相似文献