scholarly journals Unparalleled Volatility in Sector-Wise Return in the Chittagong Stock Exchange: A Covid-19 Perspective

2021 ◽  
Vol 16 (3) ◽  
pp. 55-83
Author(s):  
Nusrat Jahan ◽  
◽  
Mohammad Nayeem Abdullah ◽  
Keyword(s):  
Trend Analysis ◽  
Mutual Funds ◽  
Life Insurance ◽  
Industrial Development ◽  
Stock Exchange ◽  
Health Crisis ◽  
General Insurance ◽  
Time Period ◽  
Time Periods ◽  
The Difference

This study examined the effect of the Covid-19 health crisis on the volatility of sector-wise securities return listed in the Chittagong Stock Exchange (CSE) and compared this volatility with the pre-pandemic context. This study focused on the Chittagong Stock Exchange because this bourse offers a platform for negotiability and transferability of securities to investors in Chittagong and also plays a significant role in capital mobilization and the industrial development of Bangladesh. A sample of 90 securities under 19 sectors listed in the CSE were examined. The trend analysis indicated that Bank, Food, Footwear, Leasing, Life Insurance, Electrical and Engineering and Mutual Funds had same level of volatility between the Pre-Covid and Post-Covid time periods. Only four sectors, including Energy, Telecommunication, General Insurance and Miscellaneous sectors displayed a higher Post-Covid volatility relative to the Pre-Covid context. The result indicated that volatility of return was not the same for 19 sectors in the CSE over the selected time period. The researcher discovered that high and low periods of deaths had a significant impact on weekly volatility of return on 19 sectors of the CSE. However, the difference in volatility of return across all sectors between the Pre-Covid and Post-Covid time periods were not statistically significant from each other. Keywords: volatility of return, stock market, covid-19

scholarly journals Grafting Technique to Eliminate Rootstock Suckering of Grafted Tomatoes

HortScience ◽  
2011 ◽  
Vol 46 (4) ◽  
pp. 596-598 ◽  
Author(s):  
Michael G. Bausher
Keyword(s):  
Open Field ◽  
Field Experiments ◽  
First Year ◽  
Tomato Production ◽  
Grafting Technique ◽  
Time Period ◽  
Time Periods ◽  
The Difference ◽  
Fresh Tomato ◽  
Sprout Growth

Vegetative grafting has been proposed as a technique for managing diseases in tomatoes under open-field conditions. Over 2 successive years, we investigated the use of grafting under open-field fresh tomato production and found a serious limitation with current grafting techniques, which resulted in recurring rootstock shoot regrowth (“suckering”) from the rootstock cotyledons when left intact. Left unchecked, the regrowth of tomato rootstocks can envelop the experimental scions, which can impact the growth of field-grown tomatoes. In the Fall of 2007, the cultivars Multifort, Aloha, and TX-301 with ‘FL-47’ scions were grafted by a commercial propagator. These grafted plants were planted in a field experiment and after a time period, the number of rootstock suckers was counted and removed. This process was repeated over five time periods. In 2008, we grafted all of the plants below the rootstock cotyledons. During five different time periods spanning 57 d, bud regrowth from the rootstock occurred in all studied rootstocks in 2007. The difference in the 2 years was dramatic. In the first year, the number of plants with rootstock regrowth was as high as 84.6% in some of the plots for ‘Multifort’, 30.7% for ‘Aloha’, and 15.4% for ‘TX-301’. In the second year, with a different grafting technique, no regrowth from the rootstocks was observed. Even when the rootstock regrowth was removed in 2007, the rootstock sprout growth would reappear from the rootstock. The statistical interaction of the percentage of plants with rootstock regrowth for all recorded dates in 2007 was significant for ‘Multifort’ (Tukey-Fischer P ≤ 0.05) but not ‘Aloha’ or ‘TX-301’. Although the study also contained fumigation treatments, no interaction of soil treatments on root sprouting was observed. Since adopting this method, rootstock regrowth has not been observed in subsequent field experiments for the past 3 years.

The forecasting ability of world mutual funds

2014 ◽  
Vol 31 (2) ◽  
pp. 130-140 ◽  
Author(s):  
Javier Rodriguez
Keyword(s):  
Mutual Funds ◽  
Foreign Market ◽  
Domestic Market ◽  
Foreign Markets ◽  
Monthly Basis ◽  
Content Type ◽  
Fund Managers ◽  
Time Period ◽  
Differential Exposure ◽  
The Difference

Purpose – The paper aims to empirically examine the forecasting ability of US-based world mutual funds during the 2001-2007 time period. Design/methodology/approach – World mutual funds are treated as portfolios composed of two sets of securities, i.e. domestic and foreign and two methodologies are used to measure forecasting ability: domestic differential exposure and assertion rates. Domestic differential exposure is based on the difference between each fund exposure to the domestic market when it is the outperforming market and the portfolio exposure to the domestic market when the foreign market is outperforming. Similar to the differential exposure, assertion rates measure the ability of fund managers to pick, on a monthly basis, an outperforming market. Findings – Although changing economic conditions in both domestic and foreign markets provided plenty of opportunities to outperform market benchmarks, the results of two empirical tests reveal that fund managers fail to effectively manage their exposure to both markets. Some evidence of good forecasting ability is found when funds are examined on a yearly basis. Originality/value – This study provides the first implementation of both methodologies: domestic differential exposure and assertion rates, to examine global funds.

scholarly journals KINERJA KEUANGAN PADA PERUSAHAAN ASURANSI UMUM SYARIAH DAN ASURANSI JIWA SYARIAH DI INDONESIA PERIODE 2014-2016

2019 ◽  
Vol 5 (7) ◽  
pp. 606
Author(s):  
Fitriati Fatimatuzzahra ◽  
Puji Sucia Sukmaningrum
Keyword(s):  
Financial Performance ◽  
Life Insurance ◽  
Research Method ◽  
Sampling Technique ◽  
T Test ◽  
Insurance Companies ◽  
Purposive Sampling ◽  
Whitney Test ◽  
General Insurance ◽  
The Difference

This research is to know the difference of financial performance between islamic general insurance companies and islamic life insurance companies in the periods of 2014-2016. This research used quantitative for the research method, purposive sampling for the sampling technique, islamic general insurance companies and islamic life insurance companies for the sample. This research conduct the comparative analyzed with independent sample t-test and mann-whitney test. This research used nine variables to evaluate the financial performance which was SMR, TKD, BK, BM, PI, LK, ABSR, PP, and CT. The cmparative analysis showed that there are no differences on SMR, BK, BM, PI, PP, and CT, whereas there aredifferences on TKD, LK, and ABSR

scholarly journals What What Drives Stock Market Performance of Banks / Universal Banks? A Critical Examination of Literature

2019 ◽  
Vol 8 (3) ◽  
pp. 51-57
Author(s):  
Antonio Jaramillo Dayag ◽  
Fernando L. Trinidad
Keyword(s):  
Mutual Funds ◽  
Emerging Economies ◽  
Home Country ◽  
Stock Exchange ◽  
Financial Intermediaries ◽  
Critical Examination ◽  
Stock Exchanges ◽  
Stock Market Performance ◽  
The Difference ◽  
Global Investors

Universal banks combine commercial loan services and public deposit functions with investment, and other services such as home and auto financing, mutual funds, pension and insurance to name a few. The importance of universal banks have been recognized in emerging economies, and its growth spur economic growth and development of many countries in the world. Most universal banks are listed in stock exchanges, and as financial intermediaries, not only these banks expand their already wide portfolios but they allow more global investors into the fold, almost like a foreign direct investor, the difference only is, the investor don’t have to leave the home country. Since these banks are considered to be among the key players in stock markets, and this study seeks to understand what factors drive their performance in stock exchange so that global investors be aided in making investment decisions on universal banks.

scholarly journals MEAN REVERSION: AN INVESTIGATION FROM KARACHI STOCK EXCHANGE SECTORS

2016 ◽  
Vol 22 (4) ◽  
pp. 493-511 ◽  
Author(s):  
Jolita VVEINHARDT ◽  
Dalia STREIMIKIENE ◽  
Ahmed Raheem RIZWAN ◽  
Ahmad NAWAZ ◽  
Aniqe REHMAN
Keyword(s):  
Stock Prices ◽  
Stock Exchange ◽  
Secondary Data ◽  
Mean Reversion ◽  
Future Research ◽  
Investment Companies ◽  
Time Period ◽  
The Mean ◽  
Time Periods ◽  
The Individual

This article analyses the sectors of Karachi stock exchange in order to determine if there is any presence of mean reversion phenomenon in the stock market sectors and also an attempt to determine the pace of mean reversion. To conduct this research, secondary data is collected from the State Bank Bulletin. The frequency of the data is monthly. The variables include the individual; the data was obtained from 24 sectors returns over the period of 17 years from January 1992 to June 2008. The GARCH (1, 1) model was used to find the outcomes and the effects. In the two sectors out of 24 sectors, the GARCH and ARCH effects were significant, namely, in the Jute and Banks & Investment Companies. We studied the mean reverting process in the KSE sectors over a specific time period. Since, the mean reversion varies over different time periods. Therefore, it would be a good area for future research to study the reasons, why the market reacts differently over different time periods and to determine the reasons for such variations. The paper contributes to Stock Prices returns and investment opportunities by studying the Mean Reversion Phenomenon.

scholarly journals REKSADANA SYARIAH dan KONVENSIONAL DI INDONESIA

KEUNIS ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 120
Author(s):  
Nurseto Adhi ◽  
Dewi Pratiwi Aji ◽  
Winarni Winarni
Keyword(s):  
Mutual Funds ◽  
Mutual Fund ◽  
Stock Exchange ◽  
Hypothesis Test ◽  
Secondary Data ◽  
Sampling Technique ◽  
Test Analysis ◽  
Significant Difference ◽  
The Difference ◽  
Differential Test

<p class="western" align="justify"><em><span lang="EN-US">This study aims to test the difference between the conventional mutual fund and the sharia mutual fund on performances and risk. The development of mutual fund products is based on 2 (two) categories, conventional mutual funds, and sharia mutual funds (www.ojk.go.id). Based on data from the Data Center and Statistics of Islamic Mutual Funds, the performance of Islamic mutual funds is still underperformed compared to conventional mutual funds. Therefore, testing the performance of Islamic mutual funds by testing the performance of conventional mutual funds has not been widely tested. Secondary data was used in this study with all 1425 mutual funds from 2012-2017 on the Indonesia Stock Exchange was used as the population in this study is. The purposive sampling technique determines the sample in this study. The sample used in this study was Conventional and Shariah mutual fund in Indonesia Stock Exchange (IDX) with six products each. This hypothesis test used Differential Test tools with data analysis techniques using Paired sample t-test analysis using SPSS 25. In this study, we found that there was a significant difference between the return on conventional mutual funds and Syariah mutual funds. While the risk, Sharpe method, Treynor method, and Jensen method have not significant difference between conventional mutual funds and Syariah mutual funds.</span></em></p>

Inter-country inequality as a dynamic process and the problem of post-industrial development

2018 ◽  
pp. 5-29 ◽  
Author(s):  
L. M. Grigoryev ◽  
V. A. Pavlyushina
Keyword(s):  
Economic Growth ◽  
Political Institutions ◽  
Industrial Development ◽  
Modern World ◽  
New Approach ◽  
Development Level ◽  
The World ◽  
Long Time ◽  
The Difference ◽  
Post Industrial

The phenomenon of economic growth is studied by economists and statisticians in various aspects for a long time. Economic theory is devoted to assessing factors of growth in the tradition of R. Solow, R. Barrow, W. Easterly and others. During the last quarter of the century, however, the institutionalists, namely D. North, D. Wallis, B. Weingast as well as D. Acemoglu and J. Robinson, have shown the complexity of the problem of development on the part of socioeconomic and political institutions. As a result, solving the problem of how economic growth affects inequality between countries has proved extremely difficult. The modern world is very diverse in terms of development level, and the article offers a new approach to the formation of the idea of stylized facts using cluster analysis. The existing statistics allows to estimate on a unified basis the level of GDP production by 174 countries of the world for 1992—2016. The article presents a structured picture of the world: the distribution of countries in seven clusters, different in levels of development. During the period under review, there was a strong per capita GDP growth in PPP in the middle of the distribution, poverty in various countries declined markedly. At the same time, in 1992—2016, the difference increased not only between rich and poor groups of countries, but also between clusters.

General Takaful claims: An experience of Takaful operator in Malaysia

2017 ◽  
Vol 5 (4) ◽  
pp. 18
Author(s):  
Amirul Afif Muhamat ◽  
Mohamad Nizam Jaafar ◽  
Sharifah Faigah Syed Alwi
Keyword(s):  
Life Insurance ◽  
Islamic Finance ◽  
Rigorous Analysis ◽  
Finance Industry ◽  
General Insurance ◽  
Bright Side ◽  
Main Components ◽  
Islamic Insurance ◽  
Gathering Data ◽  
Observation Period

Takaful is interchangeably referred as Islamic insurance. In Malaysia, the takaful sector is part of the main components for Islamic finance industry. The business can be divided into two: general and family takaful. To ease understanding on this niche sector; general takaful is comparable to general insurance while family takaful is akin to life insurance with special reference needs to be given on the requirement of the business to adhere to the Islamic precepts. The main business in general takaful is motor takaful and this line of business is faced with high takaful claims. This study appraised the factors which affect the general takaful claims based on the experience of one takaful operator in Malaysia (the name of takaful operator is not disclosed due to confidentiality). The factors are: number of claims; fraud; and coverage for protection. The limitation of this study is that the observation period is only 10 years which limits rigorous analysis to be done. Nevertheless, previous studies in this area depict the same limitation – constraint in gathering data that has long observation period. On the bright side, the data in this study is still capable to produce meaningful results to be referred with regards to this issue – general takaful claims.

Dynamic network intelligent hybrid recommendation algorithm and its application in online shopping platform

2021 ◽  
pp. 1-13
Author(s):  
Yuxuan Gao ◽  
Haiming Liang ◽  
Bingzhen Sun
Keyword(s):  
Online Shopping ◽  
Rapid Development ◽  
Dynamic Network ◽  
Topsis Method ◽  
Recommendation Algorithm ◽  
Time Periods ◽  
The Difference ◽  
Relationship Of ◽  
Hybrid Recommendation ◽  
Novel Model

With the rapid development of e-commerce, whether network intelligent recommendation can attract customers has become a measure of customer retention on online shopping platforms. In the literature about network intelligent recommendation, there are few studies that consider the difference preference of customers in different time periods. This paper proposes the dynamic network intelligent hybrid recommendation algorithm distinguishing time periods (DIHR), it is a integrated novel model combined with the DEMATEL and TOPSIS method to solved the problem of network intelligent recommendation considering time periods. The proposed method makes use of the DEMATEL method for evaluating the preference relationship of customers for indexes of merchandises, and adopt the TOPSIS method combined with intuitionistic fuzzy number (IFN) for assessing and ranking the merchandises according to the indexes. We specifically introduce the calculation steps of the proposed method, and then calculate its application in the online shopping platform.

scholarly journals Impact of COVID-19 pandemic on hip fractures: the central London experience COVID-related urgent geriatric hip trauma (COUGH) study COVERT ( COVid Emergency-Related Trauma and orthopaedics) collaborative

2021 ◽  
Author(s):  
Chang Park ◽  
Kapil Sugand ◽  
Arash Aframian ◽  
Catrin Morgan ◽  
Nadia Pakroo ◽  
...  
Keyword(s):  
Best Practice ◽  
Neck Of Femur ◽  
Health Crisis ◽  
Femur Fractures ◽  
Time Period ◽  
Vulnerable Patients ◽  
Significant Difference ◽  
Usual Residence ◽  
Hip Trauma ◽  
The Impact

Abstract Introduction COVID-19 has been recognized as the unprecedented global health crisis in modern times. The purpose of this study was to assess the impact of COVID-19 on treatment of neck of femur fractures (NOFF) against the current guidelines and meeting best practice key performance indicators (KPIs) according to the National Hip Fracture Database (NHFD) in two large central London hospitals. Materials and methods A multi-center, longitudinal, retrospective, observational study of NOFF patients was performed for the first ‘golden’ month following the lockdown measures introduced in mid-March 2020. This was compared to the same time period in 2019. Results A total of 78 cases were observed. NOFFs accounted for 11% more of all acute referrals during the COVID era. There were fewer overall breaches in KPIs in time to theatre in 2020 and also for those awaiting an orthogeriatric review. Time to discharge from the trust during the pandemic was improved by 54% (p < 0.00001) but patients were 51% less likely to return to their usual residence (p = 0.007). The odds ratio was significantly higher for consultant surgeon-led operations and consultant orthogeriatric-led review in the post-COVID era. There was no significant difference in using aerosol-generating anaesthetic procedures or immortality rates between both years. Conclusion The impact of COVID-19 pandemic has not adversely affected the KPIs for the treatment of NOFF patients with significant improvement in numerous care domains. These findings may represent the efforts to ensure that these vulnerable patients are treated promptly to minimize their risks from the coronavirus.

Sign in / Sign up

Export Citation Format

Share Document