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1 – 10 of over 14000This paper examines the information efficiency of KOSDAQ50 and KOSPI200 index futures markets. The study analyzes and compares both markets in three respects : 1) price discovery…
Abstract
This paper examines the information efficiency of KOSDAQ50 and KOSPI200 index futures markets. The study analyzes and compares both markets in three respects : 1) price discovery (lead-lag relationship between spot and futures markets.), 2) volatility-volume relationship, and 3) mispricings between spot and futures prices. The first, analysis shows the in the KOSPI200 market, futures price leads spot price. While spot price leads futures price in the KOSDAQ50 market. The second analysis shows that the volatility-volume relation is positive in the KOSPI200 futures market, supporting the hypothesis of mixture of distribution. In contrast, there is little relation between volume and volatility in the KOSDAQ50 futures market. This result casts doubt that the futures market price reflects information. The last analysis shows that the magnitude of mispricing becomes smaller with more volume in the KOSPI200 futures market, while it becomes larger with more volume in the KOSDAQ50 futures market. The overall results imply that the KOSDAQ50 futures market is less informationally efficient that the KOSPI200 market. The inefficiency appears due to the lack of institutional investor participation, especially securities firms, in making up the market.
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Jang Gu Kang and Jeong Jin Lee
Traditionally, people values KTB futures contracts using the model based on the cost-of-carry argument. However, the underlying commodity for the KTB futures is non-tradable, and…
Abstract
Traditionally, people values KTB futures contracts using the model based on the cost-of-carry argument. However, the underlying commodity for the KTB futures is non-tradable, and so the cost of carry argument cannot be applied to the KTB futures. This paper regards KTB futures contracts as interest-rate derivatives, and prices them using the Black-Karasinski (B-K) term structure model. This paper documents that (1) the market prices of KTB futures are more close to B-K model price than the price by the cost-of-carry argument, though the KTB futures are generally underpriced in the market even under the B-K model; (2) The extent of underpricing is a decreasing function of the remaining maturity of the futures, and becomes smaller recently; (3) The cost of carry argument relatively overprices the KTB futures, and the degree of overpricing is a decreasing function of interest rates and the remaining maturity of the futures; (4) The daily resettlement in the futures contracts affects the futures price very little; (5) The trading strategies based on the theoretical pricing models produce very high trading profit.
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This study examines the impacts of the KTB futures options, newly introduced at the Korea Futures Exchange (KOFEX) on May, 2002, on the intraday volatility and liquidity of the…
Abstract
This study examines the impacts of the KTB futures options, newly introduced at the Korea Futures Exchange (KOFEX) on May, 2002, on the intraday volatility and liquidity of the KTB futures markets for the period from January 17, 2002, to August 30, 2002. The results show that the volatility of the KTB futures appears to have increased since the inception of the KTB futures options. However, the increase in volatility largely disappears after controlling for the effects of volume, time-to-maturity, day-of-the-week, and bid-ask bounce. There is some mixed evidence regarding the impact on the liquidity of the KTB futures markets, in the sense that the trading volume has increased significantly whereas the bid-ask spreads have widened too. The KTB futures price changes are more likely to lead the price changes of the KTB futures options by about 15 minutes, which is probably due to the infrequent trading problem on the part of the KTB futures options. Finally, though infrequently traded, the put-futures parity condition is rarely violated, and thus is difficult to be exploited for arbitrage transactions, indicating that the two markets are closely linked each other.
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Trading of KOSPI 200 futures on CME Globex platform, which was launched in November 2009, starts at 18:00 and closes at 05:00 in the next morning. This paper investigates the…
Abstract
Trading of KOSPI 200 futures on CME Globex platform, which was launched in November 2009, starts at 18:00 and closes at 05:00 in the next morning. This paper investigates the information transmission between daytime trading of KOSPI 200 futures on KRX and nighttime trading of KOSPI 200 futures on CME Globex by using GARCH (1, 1).
The main findings of this paper are summarized as followings; Firstly, the statistically significant spillover effect from open-to-close returns of KOSPI 200 Futures on Globex to the overnight returns of KOSPI 200 futures on KRX is found but not to the daytime returns. Moreover, I find the spillover effects from daytime returns of KOSPI 200 futures on KRX to close-to-open return and open-to-close return of KOSPI 200 Futures on Globex. Meanwhile, this information transmission between two markets of common underlying asset shows more strongly statistical significance during highly liquid period. Secondly, daytime traders of KOSPI 200 futures on KRX recognize the price of KOSPI 200 futures on CME Globex as more valuable information than volatility of US stock market. Overall empirical evidence suggests that KOSPI 200 futures on CME Globex has leading role in price discovery process of daytime trading of KOSPI 200 futures on KRX despite of immaturity and low liquidity.
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Margin requirements are often viewed as an effective policy tool to prevent the default risk and maintain market stability. For the Korean futures market, this paper examines…
Abstract
Margin requirements are often viewed as an effective policy tool to prevent the default risk and maintain market stability. For the Korean futures market, this paper examines whether the margin requirements work normally as a tool to prevent default risk and margin changes have impact on futures trading activity. KOSPI200 stock index futures, USD (U.S. Dollar) futures, and 3-year KTB (Korean Treasury Bond) futures are included in the sample for the period from 2010 to 2015. Using the simulation method assuming the worst situation, we find that the possibility of default occurs once for KOSPI200 futures, twice for 3-year KTB futures, and 7 times for USD futures during the sample period. This result suggests that active margin requirement policy is necessary to prepare for financial market turbulence. In addition, we find that the margin changes do not have a significant impact on the futures trading activity, suggesting that decreases in margins are not effective means to improve liquidity in the Korean futures market
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Using the next-day and next-week returns of stocks in the Korean market, we examine the association of option volume ratios – i.e. the option-to-stock (O/S) ratio, which is the…
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Using the next-day and next-week returns of stocks in the Korean market, we examine the association of option volume ratios – i.e. the option-to-stock (O/S) ratio, which is the total volume of put options and call options scaled by total underlying equity volume, and the put-call (P/C) ratio, which is the put volume scaled by total put and call volume – with future returns. We find that O/S ratios are positively related to future returns, but P/C ratios have no significant association with returns. We calculate individual, institutional, and foreign investors’ option ratios to determine which ratios are significantly related to future returns and find that, for all investors, higher O/S ratios predict higher future returns. The predictability of P/C depends on the investors: institutional and individual investors’ P/C ratios are not related to returns, but foreign P/C predicts negative next-day returns. For net-buying O/S ratios, institutional net-buying put-to-stock ratios consistently predict negative future returns. Institutions’ buying and selling put ratios also predict returns. In short, institutional put-to-share ratios predict future returns when we use various option ratios, but individual option ratios do not.
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Zoltán Krajcsák and Gyula Bakacsi
This study aims to answer the question of what characterizes organizations with future-potential, and with the help of a model introduced in this study, the authors propose what…
Abstract
Purpose
This study aims to answer the question of what characterizes organizations with future-potential, and with the help of a model introduced in this study, the authors propose what interventions can be identified and which improvements need to be made in traditional organizations so that they meet the requirements of future-potentiality.
Design/methodology/approach
A systematic literature review was conducted to identify management interventions. Citation and co-word analyses were also performed. Content analysis of 311 journal articles from the past five years was performed taking into account relevant keywords, and disciplinary narrowing was also applied. These articles were used to identify knowledge that could be used to suggest micro-, meso- and macro-level changes.
Findings
To develop the future potential of organizations, three organizational levels must be separated. The first is the micro level of relations between leaders and employees, where equity is a key value for future potentiality. It should be emphasized that not all employees’ organizational commitment is equally important for organizations with future potential, and leaders should strengthen their commitment according to individual needs and opportunities. The second is the meso level, where the decisive value is organizational moderation, and this suggests that a careful and restrained development is needed both in satisfying consumer needs and in innovation. The third is the macro level, where the defining value is responsibility and sustainability, which are necessary for achieving a state where the active development of national culture becomes possible.
Originality/value
Contrary to the authors’ expectations, it has been found that there are only a few studies dealing with change management for the purpose of achieving a future potential mode of organizational operation; thus, the results can be considered new and will contribute to the development of a cross-section of change management and future studies.
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The purpose of this paper is to present an empirical analysis, which consists of interviews with executive trainee programs of three international companies. The results of this…
Abstract
Purpose
The purpose of this paper is to present an empirical analysis, which consists of interviews with executive trainee programs of three international companies. The results of this analysis offer answers to questions currently being discussed in the corporate social responsibility (CSR) literature, namely, on the effects of CSR communication on top talent attraction.
Design/methodology/approach
The study uses structured interviews to analyze the communication perceptions and expectations of (n = 15) top talents when making employer decisions. It compares these with the expectations and intentions of HR managers responsible for programs and communications (n = 15).
Findings
The study found that HR managers only partially reflect top talents’ specific communication expectations. In addition to the program-specific CSR content, corporate communications have an overarching optimization potential in the communication mode and information architecture. It is particularly striking that future executives proactively seek CSR content in hiring and access corporate and brand communications for this purpose.
Research limitations
The study was conducted during the COVID-19 pandemic, which made a digital interview setting necessary and did not allow to react in detail on every physical signal. On top, the study has only 30 participants (15 HR/15 talents) from three different talent programs.
Implications
The study identifies practical, gender-specific and industry-specific implications for corporate communications regarding content and mode of communication. Companies should specify concrete measures for recruiting future executives, but they can also indicate efforts and first initiatives, thus setting a more decisive stage for an aspiration.
Originality/value
The study is characterized by its unique data set. Only a few companies have explicit programs for the development of future executives. The study also examines HR managers’ communication planning and expectations and future executives’ effective communication perceptions and perspectives.
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Eeva Vuorivirta-Vuoti, Suvi Kuha and Outi Kanste
Coronavirus disease (COVID-19) has challenged leadership in hospitals worldwide. The experiences of leadership during the pandemic changed leadership significantly. This study…
Abstract
Purpose
Coronavirus disease (COVID-19) has challenged leadership in hospitals worldwide. The experiences of leadership during the pandemic changed leadership significantly. This study aims to describe nurse leaders’ perceptions of what future leadership in hospital settings in the post-pandemic era needs to be like.
Design/methodology/approach
A qualitative descriptive study was used. A total of 20 nurse leaders from the Finnish central hospital were interviewed from June to October 2021. The data were analysed using inductive content analysis.
Findings
The analysis revealed five main categories describing nurse leaders’ perceptions of future leadership in hospital settings in the post-pandemic era: digitalisation and hybrid working culture, development of sustainable working conditions, moving smoothly to the post-pandemic era, dissolution of traditional regimes of organisation and flexibility in leadership.
Practical implications
In the post-pandemic era, the constantly changing demands and challenges currently facing healthcare systems have significantly increased the complexity of hospital organisations. This requires critical evaluation and change to traditional leadership. Enhancing flexibility and authenticity in leadership, strengthening competencies, implementing a wide range of digital resources and increasing the appeal of the nursing profession to build the next generation of nurses – all of these are needed to provide sustainability in future healthcare.
Originality/value
The results identify the critical points of leadership that need to be developed for future challenges and for maintaining a sufficient supply of qualified professionals. Acting on this information will enhance flexibility in organisations and lead to acceleration of changes and the development of new kinds of leadership in the future
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This viewpoint paper aims to explore the past, present and future of travel visas granting permission to travel. Visa restrictions are used by governments as an efficient method…
Abstract
Purpose
This viewpoint paper aims to explore the past, present and future of travel visas granting permission to travel. Visa restrictions are used by governments as an efficient method of restricting access in advance of travel. This paper explores how this may change in the future resulting in a shift of power from tourist to destination.
Design/methodology/approach
The Futures Triangle method was used to create a scenario incorporating the three dimensions of the triangle, i.e. the pulls of the future, the pushes of the present and the weights of the past. An artefact of the future was created to help visualise this future.
Findings
This analysis suggests that the role of visas may change in the future such that visa regimes may become part of a destination strategy. A future scenario is postulated in which destinations demand proof of fit with the destination strategy before granting a visa.
Originality/value
This viewpoint paper develops an artefact of the future based on the changing role of travel visas. It suggests that tourists might need to market themselves to the destination, proving that they are a good destination fit, before they are granted a visa to travel.
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