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Article
Publication date: 30 November 2007

Cheol Ho Park

This article investigates the profitability of technical trading rules in the KOSPI200 futures market from 1997 through 2006 after accounting for transaction costs, risk. and…

8

Abstract

This article investigates the profitability of technical trading rules in the KOSPI200 futures market from 1997 through 2006 after accounting for transaction costs, risk. and data-snooping problems. To effectively mitigate data - snooping problems resulted from survivorship bias, we largely expand the full set of technical trading rules handled in the previous literature and measure statistical significance of technical trading performance using White’s (2000) Bootstrap Reality Check (BRC) methodology and Hansen’s (2005) Superior Predictive Ability (SPA) test that can take account of interdependency across individual technical trading rules.

The results indicate that under the net return criterion the best trading rule generates the highest mean net return of about 32% per annum during the sample period but the trading return is statistically insignificant when the effect of data-snooping is considered. Similar results are found under the Sharpe ratio criterion. These findings suggest that substantial technical trading profits may be obtained due to chance rather than the Inherent predictability of technical trading rules.

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Journal of Derivatives and Quantitative Studies, vol. 15 no. 2
Type: Research Article
ISSN: 2713-6647

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Article
Publication date: 19 August 2009

Massoud Metghalchi, Jianjun Du and Yixi Ning

This paper tests two moving average technical trading rules for four Asian markets. Our results indicate that moving average rules do indeed have predictive power and can discern…

472

Abstract

This paper tests two moving average technical trading rules for four Asian markets. Our results indicate that moving average rules do indeed have predictive power and can discern recurring price patterns for profitable trading. Moreover, our results support the hypothesis that technical trading rules can outperform the buy‐and‐hold strategy. Break‐even one‐way trading costs are estimated to be high for all four markets. To confirm the test outcome, robust tests based on bootstrap and the related t‐tests among the markets are also carried out. We conclude from the statistical results that moving average rules are valid and indeed have predictive power. It is implied that the trading rules may be used to design a trading strategy that will beat the buy‐and‐hold strategy in the Hong Kong, Singapore, South Korea, and Taiwan markets. The contribution of the current study is that this is the first validation test of trading rules using four markets at a similar development stage and culture tradition; and in the tests, we use most current and longer periods than the periods used in previous literature. Our robust tests are unique and considered distribution‐free.

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Multinational Business Review, vol. 17 no. 3
Type: Research Article
ISSN: 1525-383X

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Book part
Publication date: 13 March 2019

Louise Flockhart

In this chapter, I discuss the development of the cannibal picking up from Jennifer Brown’s (2013) study, Cannibalism in Literature and Film. Brown (2013, p. 7) argued that the…

Abstract

In this chapter, I discuss the development of the cannibal picking up from Jennifer Brown’s (2013) study, Cannibalism in Literature and Film. Brown (2013, p. 7) argued that the cannibal is a sign of ultimate difference who ‘reappears in various guises at times when popular culture needs to express real fears and anxieties’. I argue that the most recent version of the cannibal is gendered female and that this coincides with a postfeminist media culture. I explore how the cannibal is positioned as an ambiguous figure which questions both humanity and monstrosity. I argue that this is complicated by gendering it female as women have traditionally straddled the line between human and less-than human in popular culture. I discuss three films: 301/302 (Park, 1995), The Woman (Torino, Van Den Houten, & McKee, 2011) and Raw (De Forêts & Ducournau, 2016) and explore how they use incest, objectification and dehumanization as well as cannibalism to explore the ambiguities of postfeminist subjecthood. I will argue that by performing acts of cannibalism the female cannibals in these films reclaim their subjectivity both by objectifying others and by identifying with their victims. The cannibalism also presents the opportunity for female-oriented families through shared consumption which ironically embraces patriarchal ideals of feminine feeding roles and challenges the patriarchal basis of the family.

Details

Gender and Contemporary Horror in Film
Type: Book
ISBN: 978-1-78769-898-7

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Available. Open Access. Open Access
Article
Publication date: 31 December 2017

Min-Hwan Lee and Ho-Cheol Nam

This study considers the case in which governments decide whether to support private commercial banks with a subsidy policy in order to encourage participation in the…

163

Abstract

This study considers the case in which governments decide whether to support private commercial banks with a subsidy policy in order to encourage participation in the international ship financing market. We examine two cases: (i) identical efficiency between domestic and foreign commercial banks; and (ii) different efficiencies between these banks. In the first case, the domestic government has the incentive to provide a subsidy strategy for domestic commercial banks to maximize social welfare, while the foreign government does not use the subsidy support. Furthermore, in the second case, foreign governments and commercial banks always prefer the subsidy strategy in order to maximize both social welfare and profits. However, the domestic government uses the subsidy strategy depending on the efficiency gap between the two banks. Our model suggests that governments need to support commercial banks with an appropriate subsidy strategy (direct or indirect) to promote participation in the market.

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Journal of International Logistics and Trade, vol. 15 no. 3
Type: Research Article
ISSN: 1738-2122

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Article
Publication date: 18 January 2022

Jungwon Lee and Cheol Park

The authors investigated the effects of the characteristics of reviews, reviewers and corporate factors on review helpfulness and assessed the role of culture in moderating these…

854

Abstract

Purpose

The authors investigated the effects of the characteristics of reviews, reviewers and corporate factors on review helpfulness and assessed the role of culture in moderating these relationships.

Design/methodology/approach

A research model was established based on the elaboration likelihood and information adoption models. To empirically analyze this research model, 10,611 TripAdvisor reviews from 9 countries were collected. In addition, a zero-inflated negative binomial model and multilevel analysis were employed in consideration of the data characteristics.

Findings

The results revealed that review depth had a positive effect on review helpfulness, and review ratings and reviewer expertise had a negative effect. As a corporate characteristic, hotel size had a negative effect on review helpfulness. In addition, the effects of review rating, reviewer expertise and hotel rating exhibited significant differences based on the moderating effects of uncertainty avoidance and power distance level.

Originality/value

The results of this study expand the review helpfulness literature by explaining the inconsistent findings of previous studies via cultural theory. In addition, past research in this field has mainly focused on analyzing only review and reviewer characteristics, while this study demonstrated that company size negatively affects review helpfulness based on the signaling theory. Finally, this study contributes to cultural comparison literature by discovering that the processing of review information by consumers differs according to their cultural background.

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Internet Research, vol. 32 no. 5
Type: Research Article
ISSN: 1066-2243

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Article
Publication date: 9 February 2015

Hoang Vu Phan, Quang-Tri Truong and Hoon-Cheol Park

The purpose of this paper is to demonstrate the uncontrolled vertical takeoff of an insect-mimicking flapping-wing micro air vehicle (FW-MAV) of 12.5 cm wing span with a body…

563

Abstract

Purpose

The purpose of this paper is to demonstrate the uncontrolled vertical takeoff of an insect-mimicking flapping-wing micro air vehicle (FW-MAV) of 12.5 cm wing span with a body weight of 7.36 g after installing batteries and power control.

Design/methodology/approach

The forces were measured using a load cell and estimated by the unsteady blade element theory (UBET), which is based on full three-dimensional wing kinematics. In addition, the mean aerodynamic force center (AC) was determined based on the UBET calculations using the measured wing kinematics.

Findings

The wing flapping frequency can reach to 43 Hz at the flapping angle of 150°. By flapping wings at a frequency of 34 Hz, the FW-MAV can produce enough thrust to over its own weight. For this condition, the difference between the estimated and average measured vertical forces was about 7.3 percent with respect to the estimated force. All parts for the FW-MAV were integrated such that the distance between the mean AC and the center of gravity is close to zero. In this manner, pitching moment generation was prevented to facilitate stable vertical takeoff. An uncontrolled takeoff test successfully demonstrated that the FW-MAV possesses initial pitching stability for takeoff.

Originality/value

This work has successfully demonstrated an insect-mimicking flapping-wing MAV that can stably takeoff with initial stability.

Details

International Journal of Intelligent Unmanned Systems, vol. 3 no. 1
Type: Research Article
ISSN: 2049-6427

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Article
Publication date: 17 April 2007

Jong‐Woon Lee and Sangbok Ree

Author considered the contradiction of Capitalism and its Solution, systemized the concept to newly define Ethics Management and social Responsibility whose various terminologies…

997

Abstract

Author considered the contradiction of Capitalism and its Solution, systemized the concept to newly define Ethics Management and social Responsibility whose various terminologies are used in Domestic and foreign country and compared, analyzed and considered global guideline, standard organization and global Evaluation Model of internationally‐performed Ethics Management on the basis of the concept of new Ethics Management.

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Asian Journal on Quality, vol. 8 no. 1
Type: Research Article
ISSN: 1598-2688

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Article
Publication date: 1 September 2005

Cheol Park

In the discount store area, foreign large retailers such as Wal‐mart, Carrefour, and Costco fight hard with domestic retailers in Korea. The Korean customer is a judge in the…

2398

Abstract

In the discount store area, foreign large retailers such as Wal‐mart, Carrefour, and Costco fight hard with domestic retailers in Korea. The Korean customer is a judge in the centre of such a difficult fight. Therefore, foreign retailers who are willing to win the game should pay attention to what Koreans say and respond to the complaint as fast as they can. This study monitored e‐complaints of customers towards Korea Carrefour through analysing contents of the bulletin board in an anti‐Carrefour site. Upon examining e‐complaints by category and retail attributes, there were found to be more complaints in electrical goods and food and groceries by product category, and in employee attitudes and store atmosphere by retail attributes. The implications for successful retail strategies of foreign discount stores in Korea are discussed and further research is suggested.

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Asia Pacific Journal of Marketing and Logistics, vol. 17 no. 3
Type: Research Article
ISSN: 1355-5855

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Article
Publication date: 1 February 2004

Kiyoung Kim

This paper, in face of the increasing interconnectivity between local and global, has attempted to retrospect the critical moment of Korean society under Tae‐woo Rho (1988–93…

176

Abstract

This paper, in face of the increasing interconnectivity between local and global, has attempted to retrospect the critical moment of Korean society under Tae‐woo Rho (1988–93) regime, in which Korea struggled for fundamental reforms of the earlier centrally controlled state system through economic rationalization and labor flexibilization. During that juncture of Korean history, neo‐liberalization under the influence of Fordian decline was a governing theme behind the Korean economy's policy formation as well as labor agenda. This reliance of government on the neo‐liberal pillar has made an impact on the subsequent leaderships under Young Sam Kim (1993–1998) and Dae Jung Kim (1998‐present). After briefly reviewing the major aspect of Korean economy and labor problems surrounding the financial crisis of East Asia around 1998, the international influence of Fordian decline and neo‐liberalization as a Korean alternative has been discussed.

Details

International Journal of Development Issues, vol. 3 no. 2
Type: Research Article
ISSN: 1446-8956

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Article
Publication date: 1 April 2005

Je Ho Cheong and Myeong‐Cheol Park

The increasing number of M‐internet subscribers and the fast growing revenue proves the great potential of M‐internet as well as the enormous business opportunity in Korea. The…

9195

Abstract

Purpose

The increasing number of M‐internet subscribers and the fast growing revenue proves the great potential of M‐internet as well as the enormous business opportunity in Korea. The success in this business is dependent on understanding the concerns of customers and identifying the factors that promote the use of M‐internet. Thus, this paper aims to examine the human motivations underlying individual behavioral intention to use M‐internet in Korea.

Design/methodology/approach

Employs TAM (technology acceptance model) as the base model and develops a more comprehensive version of TAM to better reflect M‐internet context. The model employs perceived playfulness, contents quality, system quality, internet experience and perceived price level, in addition to perceived usefulness and ease of use. Investigates the causal relationships among the constructs used in this revised TAM and identifies the direct and indirect causal role of the constructs in developing the intention to use M‐internet.

Findings

Finds that attitude toward M‐internet is the most significant factor in predicting the behavioral intention to use M‐internet. Also identifies the positive role of the perceived playfulness and the negative role of perceived price level in developing the attitude as well as the intention. The positive causal relationships of “perceived contents quality – perceived usefulness”, “perceived system quality– perceived usefulness” and “internet experience–perceived ease of use” were also witnessed.

Practical implications

Considering the explosive growth of the M‐internet market, well‐established business strategy in M‐internet will deliver great success to the mobile operators. Thus, understanding comprehensive causal relationship among the constructs used in this revised TAM would help managers to better implement the strategic ramifications in promoting M‐internet.

Originality/value

Develops a more comprehensive version of TAM to better reflect M‐internet context in Korea, adding five new constructs and identifies the role of the construct in promoting the use of M‐internet.

Details

Internet Research, vol. 15 no. 2
Type: Research Article
ISSN: 1066-2243

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