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991.
Margin regulation raises two policy concerns. First, an alignment of margins to volatility can amplify procyclicality, leading to a build-up of excess leverage in good times and a forced deleverage in bad times. Second, competition among central counterparties (CCPs) can result in lower margin levels in order to attract more trading volume, which is referred to as a “race to the bottom.” Motivated by these issues, we empirically analyze the determinants of margin changes by using a data set of various futures margins from Chicago Mercantile Exchange (CME) Group. We first find that CME Group raises margins quickly following volatility spikes but does not immediately lower margins following volatility declines, implying that margin-induced procyclicality is more of a concern in recessions than in expansions. In addition, we find some evidence that the margin difference between CME Group and its competitor, Intercontinental Exchange (ICE), is an important driver of margin changes after changes in other margin determinants are controlled for, implying that competition may be factored into margin setting. 相似文献
992.
Does the XBRL Reporting Format Provide Incremental Information Value? A Study Using XBRL Disclosures During the Voluntary Filing Program 下载免费PDF全文
This study investigates whether the eXtensible Business Reporting Language (XBRL) reporting format provides incremental information value beyond the same 10K/10Q filings previously provided in HTML format. Using a sample from the XBRL Voluntary Filing Program, we document a significant increase in stock price variance on the day when voluntary XBRL reports are filed. We find market response is stronger when more content is filed on the same day. To evaluate relative information value, we decompose the quarterly return variance for three primary news announcements related to earnings including earnings announcement, HTML filing, and XBRL filing. We find XBRL filings have larger relative information value than HTML filings. Our results indicate that the XBRL reporting format provides incremental information content. 相似文献
993.
994.
Recognizing the importance and potential benefits of customer reviews as a source of the voice of customers, this study proposes an analytic framework and procedures for analyzing customer reviews—termed a customer review-based gap analysis—that are tailored to diagnosing service quality. To this end, we conduct sentiment analysis on customer reviews to capture customers’ perceptions and expectations at the service-feature level, which are not expressed explicitly in their reviews. A case study of a mobile navigation service shows that the customer review-based gap analysis can provide the practical information required to diagnose service quality from customer review data. The suggested indexes for capturing customers’ perceptions and expectations reveal quality strengths and drawbacks at the service-feature level. In addition, incorporating these indexes into those for quality performance and objectives based on a service-feature hierarchy provides a diagnostic tool capable of examining service quality in both overall as well as detailed aspects. 相似文献
995.
Using the Reinhart–Rogoff dataset, we find a debt threshold not around 90 per cent but around 30 per cent, above which the median real gross domestic product (GDP) growth falls abruptly. Our work is the first to formally test for threshold effects in the relationship between public debt and median real GDP growth. The null hypothesis of no threshold effect is rejected at the 5 per cent significance level for most cases. While we find no evidence of a threshold around 90 per cent, our findings from the post‐war sample suggest that the debt threshold for economic growth may exist around a relatively small debt‐to‐GDP ratio of 30 per cent. Furthermore, countries with debt‐to‐GDP ratios above 30 per cent have GDP growth that is 1 percentage point lower at the median. 相似文献
996.
Chulwoo Han Frank C. Park Jangkoo Kang 《Review of Quantitative Finance and Accounting》2017,49(4):1121-1141
In this article, we propose a new framework for addressing multivariate time-varying volatilities. By employing methods of differential geometry, our model respects the geometric structure of the covariance space, i.e., symmetry and positive definiteness, in a way that is independent of any local coordinate parametrization. Its parsimonious specification makes it particularly suitable for large dimensional systems. Simulation studies suggest that our model embraces much of the nonlinear behaviour of the covariance dynamics. Applied to the US and the UK stock markets, the model performs well, especially when applied to risk measurement. In a broad context, our framework presents a new approach treating nonlinear properties observed in the financial market, and numerous areas of application can be further considered. 相似文献
997.
J. Barry Lin Christos Pantzalis Jung Chul Park 《Review of Quantitative Finance and Accounting》2017,49(1):159-194
We provide evidence consistent with the notion that prudent use of financial derivatives improves firms’ information environment. We show that firms with sophisticated and comprehensive derivatives use policies display lower levels of uncertainty about future cash flows, volatility of future income and sales growth, and equity mispricing than those that do not use derivatives. However, we also show that policies that consist of large positions in a single type of derivative contract are not likely to produce similar benefits. These results remain intact even after accounting for the endogenous nature of derivatives use policy and information risk and mispricing. 相似文献
998.
In this paper, we examine the role of export promotion agencies (EPAs) in promoting exports from Japan and Korea. Looking at two home countries enables us to tackle endogeneity issues by controlling for both country‐pair time‐invariant characteristics and importing‐country time‐varying characteristics. Our empirical results indicate that EPA has a positive and significant effect on exports even when we control for endogeneity. However, the size of the effect becomes substantially smaller, implying the importance of addressing endogeneity in accurately measuring the impact of EPA on exports. In addition, we find that EPA's (marginal) effects are larger in exporting to low‐income trade partners than in exporting to high‐income trade partners. 相似文献
999.
Byung-Jin Park Manish K. Srivastava Devi R. Gnyawali 《Technology Analysis & Strategic Management》2014,26(8):893-907
This paper examines two interrelated questions: to what extent does coopetition in a firm's alliance portfolio impact the firm's innovation performance? And to what extent does a firm's coopetition experience influence the relationship between coopetition in the alliance portfolio and innovation performance? Conceptually, we advance the concepts of balanced coopetition in a firm's alliance portfolio and coopetition experience and suggest that both balanced coopetition and coopetition experience contribute to firm's innovation outcomes. Results based on a longitudinal data of firms from the semiconductor industry show that moderate to high levels of balanced-strong coopetition in a firm's alliance portfolio positively impact the firm's coopetition-based innovation performance. Further, coopetition experience contributes to innovation performance and positively moderates the relationship between balanced-strong coopetition and innovation performance. 相似文献
1000.
We extend the knowledge‐based view with a new typology and its application to post‐IPO firm performance. The typology categorizes knowledge development activity along the dimensions of familiarity (whether the firm has experience with the knowledge or it is new) and source (whether the firm creates it independently or with partners). We use this typology to determine direct and interaction effects of knowledge development activity on survival, RoA, and Tobin's q of newly public firms. Using a sample of 1,056 high‐technology manufacturing IPOs in 1990–2005, we find that focused, internal knowledge development correlates with higher performance. We also find a positive interaction effect in combining focused, internal and diversifying, alliance‐based knowledge development, and a negative interaction effect in combining diversifying, internal and alliance‐based knowledge development. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献