Market impact: a systematic study of the high frequency options market

This paper deals with a fundamental subject that has seldom been addressed in recent years, that of market impact in the options market. Our analysis is based on a proprietary database of metaorders—large orders that are split into smaller pieces before being sent to the market—on one of the main Asian markets. In line with our previous work on the equity market [Said, E., Bel Hadj Ayed, A., Husson, A. and Abergel, F., Market impact: A systematic study of limit orders. Mark. Microstruct. Liq., 2018, 3(3&4), 1850008.], we propose an algorithmic approach to identify metaorders, based on some implied volatility parameters, the at the money forward volatility and at the money forward skew. In both cases, we obtain results similar to the now well-understood equity market: Square-Root Law, Fair Pricing Condition and Market Impact Dynamics.     

发展现代物流开掘新的利润源

随着经济的全球化，现代物流业在国内已逢勃发展，通过大量的资料和数据，说明了现代物流业已成为国民经济的重要支撑点，是新的“利润源泉”，指出了我国如何加快现代物流业的举措。     

高高在上的尊严

夜晚的绕城公路上，两三名“交警”拦下一辆外地牌号的轿车，制服、警帽、罚单甚至配枪，一应俱全，几名“人民卫士”俨然在秉公执法于一个交通违规事件。车，被“顺理成章”地扣留。几天之后，当车主带着扣车凭证前往车管所领车的时候，揭开了一场几地连锁的冒充交警扣车骗车的案件序幕。这是发生于广东省的一桩大型诈骗案件，涉及范围广及东莞、肇庆、深圳等多处。在警方严密配合下，几经展转周折，案件终究告破。     

Strategic alliances and internationalisation in the aircraft manufacturing industry

Based on an indicator measuring the technological level of aircraft, this paper shows that in the aircraft industry, firms are obliged to deal not only with high technological barriers, but growing financial and market barriers, too. In order to reduce these, a complex network of relationships has developed over time. This network involves both main firms belonging to the world oligopoly and firms capable of offering specialised technology and/or a potential broadening of the market. The result is a worldwide production organisation. This paper highlights the fact that the aircraft industry is undergoing a global reorganisation featuring an integration process where six groups (two in Europe and four in the United States) have come to the fore. In the future, it will be possible to imagine new forms of co-operation between the emerging European and American groups.     

企业公民

早在2003年．身为商务部研究院跨国公司研究中心主任的王志乐就开始对跨国公司如何强化公司责任进行了调查研究，当时．国内学术界媒体对于“公司责任”这个领域的研究报道几乎是一片空白。     

好风凭借力送我上青云--记虎门借力服装跃居全国千强镇之首

虎韵霓裳羽衣曲,十载激情谱华章M 11月,中国(虎门)国际服装交易会将迎来它的十岁华诞,一个激动人心的消息像一份不期而至的大喜贺礼在她的生日到来之际传来--国家统计局公布最新测评结果,全国综合实力千强镇名单新鲜出炉,虎门荣登榜首!     

加盟奥运特许经营的途径

7月1日．西部第一家北京2008年奥运会特许商品零售店正式在成都亮相。成都是继北京、青岛、上海之后，第4个开设奥运会特许商品零售店的试点城市。     

Assessment of Interjudge Reliability in the Open-Ended Questions Coding Process

In the process of coding open-ended questions, the evaluation of interjudge reliability is a critical issue. In this paper, using real data, the behavior of three coefficients of reliability among coders, Cohen’s K, Krippendorff’s α and Perreault and Leigh’s I _r are patterned, in terms of the number of judges involved and the categories of answer defined. The outcome underlines the importance of both variables in the valuations of interjudge reliability, as well as the higher adequacy of Perreault and Leigh’s I _r and Krippendorff’s α for marketing and opinion research.