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61.
62.
Managers can improve real risk‐adjusted firm performance by matching nominal assets with nominal liabilities, thereby reducing the sensitivity of real risk‐adjusted returns to unexpected inflation. The net asset value of US equity real estate investment trusts (REITs) serves as a good proxy for nominal assets and, accordingly, we use a sample of US REITs to test our hypothesis. We find that for the firms in our sample: (i) their real risk‐adjusted performance, and (ii) their inflation‐hedging qualities are inversely related to deviations from this ‘matching‐nominals’ argument. In addition to providing managers with a vehicle to maximize real risk‐adjusted performance, our findings also provide investors with the tools to infer inflation‐hedging qualities of equity investments. 相似文献
63.
Players repeatedly face a coordination problem in a dynamic global game. By choosing a risky action (invest) instead of waiting, players risk instantaneous losses as well as a loss of payoffs from future stages, in which they cannot participate if they go bankrupt. Thus, the total strategic risk associated with investment in a particular stage depends on the expected continuation payoff. High continuation payoff makes investment today more risky and therefore harder to coordinate on, which decreases today's payoff. Thus, expectation of successful coordination tomorrow undermines successful coordination today, which leads to fluctuations of equilibrium behavior even if the underlying economic fundamentals happen to be the same across the rounds. The dynamic game inherits the equilibrium uniqueness of the underlying static global game. 相似文献
64.
Corporate social responsibility and the ‘game of catallaxy’: the perspective of constitutional economics 总被引:1,自引:0,他引:1
Viktor J. Vanberg 《Constitutional Political Economy》2007,18(3):199-222
The paper examines the issue of corporate social responsibility (CSR) from the perspective of constitutional economics, focusing
on the distinction between a political community’s constitutional choice of the rules of the “market game,” and the market
players’ sub-constitutional choice of strategies within these rules. Three versions of CSR-demands are identified and discussed,
a “soft,” a “hard”, and a “radical” version. The soft version is concerned with the issue of how “socially responsible” corporations ought to play the market game within existing
rules. The hard version is about how the rules of the market ought to be changed in order to induce “socially responsible” corporate behavior.
And the radical version questions the compatibility of CSR and the logic of the market game, calling in effect for adopting some alternative
economic regime.
相似文献
Viktor J. VanbergEmail: |
65.
We exploit a dataset that includes the individual tax returns of all taxpayers in the top percentile of the income distribution in Germany to pin down the effective income taxation of households with very high incomes. Taking tax base erosion into account, we find that the top percentile of the income distribution pays an effective average tax rate of 30.5% and contributes more than a quarter of total income tax revenue. Within the top percentile, the effective average tax rate is first increasing, then decreasing, with income. Since the 1990s, effective average tax rates for the German super‐rich have fallen by about a third, with major reductions occurring in the wake of the personal income tax reform of 2001–05. As a result, the concentration of net incomes at the very top of the distribution has strongly increased in Germany. 相似文献
66.
Viktor J. Vanberg 《The Review of Austrian Economics》2014,27(2):147-156
This is a personal account of my relationship with James M. Buchanan, his significance for my academic career and the influence of his work on my own research. 相似文献
67.
Evelina Bertranou Carolyn Bodnar Viktor Dansk Alastair Greystoke Samuel Large 《Journal of medical economics》2018,21(2):113-121
Aim: This study presents the cost-utility analysis that was developed to inform the NICE health technology assessment of osimertinib vs platinum-based doublet chemotherapy (PDC) in patients with EGFR-T790M mutation-positive non-small cell lung cancer (NSCLC) who have progressed on epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) therapy.Methods and materials: A partitioned survival model with three health states (progression-free, progressed disease, and death) from a UK payer perspective and over lifetime (15 years) was developed. Direct costs included disease management, treatment-related (acquisition, administration, monitoring, adverse events), and T790M testing costs. Efficacy and safety data were taken from clinical trials AURA extension and AURA2 for osimertinib and IMPRESS for PDC. An adjusted indirect treatment comparison was applied to reduce the potential bias in the non-randomized comparison. Parametric functions were utilized to extrapolate survival beyond the observed period. Health state utility values were calculated from EQ-5D data collected in the trials and valued using UK tariffs. Resource use and costs were based on published sources.Results: Osimertinib was associated with a gain of 1.541 quality-adjusted life-years (QALYs) at an incremental cost of £64,283 vs PDC (incremental cost-effectiveness ratio [ICER]: £41,705/QALY gained). Scenario analyses showed that none of the plausible scenarios produced an ICER above £44,000 per QALY gained, and probabilistic sensitivity analyses demonstrated a 63.4% probability that osimertinib will be cost-effective at a willingness-to-pay threshold of £50,000.Limitations: The analysis is subject to some level of uncertainty inherent to phase 2 single-arm data and the immaturity of the currently available survival data for osimertinib.Conclusions: Osimertinib may be considered a cost-effective treatment option compared with PDC in the second-line setting in patients with EGFR-T790M mutation-positive NSCLC from a UK payer perspective. Further data from the ongoing AURA clinical trial program will reduce the inherent uncertainty in the analysis. 相似文献
68.
Daniel Guhl Bernhard Baumgartner Thomas Kneib Winfried J. Steiner 《International Journal of Research in Marketing》2018,35(3):394-414
Nowadays, brand choice models are standard tools in quantitative marketing. In most applications, parameters representing brand intercepts and covariate effects are assumed to be constant over time. However, marketing theories, as well as the experience of marketing practitioners, suggest the existence of trends or short-term variations in particular parameters. Hence, having constant parameters over time is a highly restrictive assumption, which is not necessarily justified in a marketing context and may lead to biased inferences and misleading managerial insights.In this paper, we develop flexible, heterogeneous multinomial logit models based on penalized splines to estimate time-varying parameters. The estimation procedure is fully data-driven, determining the flexible function estimates and the corresponding degree of smoothness in a unified approach. The model flexibly accounts for parameter dynamics without any prior knowledge needed by the analyst or decision maker. Thus, we position our approach as an exploratory tool that can uncover interesting and managerially relevant parameter paths from the data without imposing assumptions on their shape and smoothness.Our approach further allows for heterogeneity in all parameters by additively decomposing parameter variation into time variation (at the population level) and cross-sectional heterogeneity (at the individual household level). It comprises models without time-varying parameters or heterogeneity, as well as random walk parameter evolutions used in recent state space models, as special cases. The results of our extensive model comparison suggest that models considering parameter dynamics and household heterogeneity outperform less complex models regarding fit and predictive validity. Although models with random walk dynamics for brand intercepts and covariate effects perform well, the proposed semiparametric approach still provides a higher predictive validity for two of the three data sets analyzed.For joint estimation of all regression coefficients and hyperparameters, we employ the publicly available software BayesX, making the proposed approach directly applicable. 相似文献
69.
This article explores an understanding of the entrepreneurial behavior of small and medium enterprises (SMEs) in Poland, one of the emerging markets of the European Union, during the recent period of economic slowdown. It considers the role of accessibility to external financial resources in shaping decisions undertaken by such enterprises. The hypothesis is that, in a period of economic slowdown, SMEs that have difficulty in accessing external sources of financing adopt different strategies than those that have free access to those resources. The findings indicate that access to the external sources of financing is a statistically significant factor determining decisions of SMEs in relation to employment reduction, price reductions on goods/services, suspension of previously planned investments, and an increase in the level of salaries. Consequently, the study is important as it considers factors that impact the success and survival of SMEs in the emerging market; it is also unique, as it investigates these aspects in the recent period of the global economic downturn. © 2014 Wiley Periodicals, Inc. 相似文献
70.
Academic startups are thought to locate in their parent university’s home region because being in the vicinity of a university provides cost advantages in accessing academic knowledge and resources. In this paper we analyze the importance of a different mechanism, namely, social ties between academic entrepreneurs and university researchers, for enabling and facilitating the access to academic knowledge and resources, and therefore for the location of academic startups. We employ unique data on academic startups from regions with more than one university and find that only the parent university influences academic entrepreneurs’ decisions to stay in the region while other universities in the same region play no role. Our findings suggest that the mere local availability of a university may not per se guarantee access to knowledge and resources; social ties are additionally required. The importance of social ties implies that academic knowledge and resources are not necessarily local public good. This holds implications for universities’ role in stimulating regional development. 相似文献