scholarly journals Effect of the Launch of Nifty Weekly Options on the Relationship between Nifty and India VIX

This paper examines the impact of the introduction of weekly expiry on Nifty options on the relationship between Nifty and India VIX. It demonstrates that the introduction of weekly expiration on Nifty options resulted in a significant decrease in the association of market returns and volatility. This decrease was visible across options-based volatility metrics like India VIX and non-options-based volatility metrics like Annualized Volatility of Futures and Underlying asset (Nifty Index). This study finds that shorter expiries and resultant larger volumes lower the correlation between market performance and various volatility indicators. This is done by testing the effect of Nifty volumes in the Options segment as a moderator variable in the relationship between Nifty and India VIX. In other words, an increase in India VIX now indicates a lower decline in Nifty than it did earlier. This paper also indicates that the inverse must also be true. Longer expiries and comparatively lower volumes contributed to a higher negative correlation between Nifty and India VIX. By comparing correlations in the periods before and after the introduction of weekly expiry on Nifty options, we measure the impact of volumes and expiration time

2020 ◽  
Vol 12 (20) ◽  
pp. 8493
Author(s):  
Paloma Escamilla-Fajardo ◽  
Juan M. Núñez-Pomar ◽  
Ferran Calabuig-Moreno ◽  
Ana M. Gómez-Tafalla

Sports entrepreneurship has been considered an important part of sports organisations when overcoming crisis situations. The aim of this study is to determine the impact of the crisis derived from COVID-19 on sports entrepreneurship and whether there are differences in the prediction of entrepreneurship on service quality in non-profit sports clubs. To this end, 145 sports clubs were analysed before and after the outbreak of the virus in society. Paired sample-t tests were carried out to determine the differences in variables studied before (Time I) and after (Time II) the COVID-19 outbreak, and correlations and hierarchical linear regressions were used to analyse the relationship between the variables studied in the two different stages. The results obtained show that risk-taking and innovation are significantly higher after the appearance of COVID-19, while proactivity has not undergone significant changes. Finally, the relationship between sports entrepreneurship and service quality is positive and significant in both stages but stronger before the crisis.


Author(s):  
Edy Effendi ◽  
Muhammad Imron

Research on the role of the APIP review of the Ministry/agency Work Plan and Budget document to determine the impact on the efficiency of ministry/agency spending (case study at the Ministry of Religion). The method used in this study uses simple linear regression with dummy. The use of linear regression is used to examine the relationship between independent variables (certain types of expenditure) and dependent variables (total expenditure). Whereas, dummy is used to find out before and after the APIP review is done. Throughout the author's search, this research has never been done. Based on the results of linear regression obtained, the APIP review significantly had a positive effect on official travel expenditure and honorarium but did not significantly affect building spending and equipment. Abstrak   Penelitian atas peran reviu APIP atas dokumen Rencana Kerja dan Anggaran Kementerian Negara/Lembaga untuk mengetahui dampaknya terhadap efisiensi belanja kementerian/lembaga (studi kasus pada Kementerian Agama). Metode yang digunakan dalam penelitian ini menggunakan regresi linier sederhana dengan dummy. Penggunaan regresi liner digunakan untuk meneliti hubungan antara variable independen (jenis belanja tertentu) dan variable dependen (total belanja). Sedangkan, dummy digunakan untuk mengetahui sebelum dan setelah reviu APIP dilakukan. Sepanjang penelusuran penulis, penelitian ini belum pernah dilakukan. Berdasarkan hasil regresi linier diperoleh, reviu APIP signifikan berpengaruh positif terhadap  belanja perjalanan dinas dan honorarium tetapi tidak signifikan berbengaruh terhadap belanja gedung dan alat.


Author(s):  
Amalendu Bhunia ◽  
Devrim Yaman

This paper examines the relationship between asset volatility and leverage for the three largest economies (based on purchasing power parity) in the world; US, China, and India. Collectively, these economies represent Int$56,269 billion of economic power, making it important to understand the relationship among these economies that provide valuable investment opportunities for investors. We focus on a volatile period in economic history starting in 1997 when the Asian financial crisis began. Using autoregressive models, we find that Chinese stock markets have the highest volatility among the three stock markets while the US stock market has the highest average returns. The Chinese market is less efficient than the US and Indian stock markets since the impact of new information takes longer to be reflected in stock prices. Our results show that the unconditional correlation among these stock markets is significant and positive although the correlation values are low in magnitude. We also find that past market volatility is a good indicator of future market volatility in our sample. The results show that positive stock market returns result in lower volatility compared to negative stock market returns. These results demonstrate that the largest economies of the world are highly integrated and investors should consider volatility and leverage besides returns when investing in these countries.


2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Henrique Cotchi Simbo Muela ◽  
Jose Jayme Galvão De Lima ◽  
Luis Henrique W. Gowdak ◽  
Flávio J. de Paula ◽  
Luiz Aparecido Bortolotto

Background.High serum uric acid (UA) is associated with increased cardiovascular (CV) risk in the general population. The impact of UA on CV events and mortality in CKD is unclear.Objective.To assess the relationship between UA and prognosis in hemodialysis (HD) patients before and after renal transplantation (TX).Methods.1020 HD patients assessed for CV risk and followed from the time of inception until CV event, death, or TX (HD) or date of TX, CV event, death, or return to dialysis (TX).Results.821 patients remained on HD while 199 underwent TX. High UA (≥428 mmol/L) was not associated with either composite CV events or mortality in HD patients. In TX patients high UA predicted an increased risk of events (P=0.03, HR 1.6, and 95% CI 1.03–2.54) but not with death. In the Cox proportional model UA was no longer significantly associated with CV events. Instead, a reduced GFR (<50 mL/min) emerged as the independent risk factor for events (P=0.02, HR 1.79, and % CI 1.07–3.21).Conclusion.In recipients of TX an increased posttransplant UA is related to higher probability of major CV events but this association probably caused concurrent reduction in GFR.


2013 ◽  
Vol 11 (5) ◽  
pp. 147470491301100 ◽  
Author(s):  
Liam P. Kilduff ◽  
Renato N. Hopp ◽  
Christian J. Cook ◽  
Blair T. Crewther ◽  
John T. Manning

The relative lengths of the 2nd and 4th digits (2D:4D) is a negative biomarker for prenatal testosterone, and low 2D:4D may be associated with aggression. However, the evidence for a 2D:4D-aggression association is mixed. Here we test the hypothesis that 2D:4D is robustly linked to aggression in “challenge” situations in which testosterone is increased. Participants were exposed to an aggressive video and a control video. Aggression was measured after each video and salivary free testosterone levels before and after each video. Compared to the control video, the aggressive video was associated with raised aggression responses and a marginally significant increase in testosterone. Left 2D:4D was negatively correlated with aggression after the aggressive video and the strength of the correlation was higher in those participants who showed the greatest increases in testosterone. Left 2D:4D was also negatively correlated to the difference between aggression scores in the aggressive and control conditions. The control video did not influence testosterone concentrations and there were no associations between 2D:4D and aggression. We conclude that 2D:4D moderates the impact of an aggressive stimulus on aggression, such that an increase in testosterone resulting from a “challenge” is associated with a negative correlation between 2D:4D and aggression.


Author(s):  
Ramzi Boussaidi

The self-attribution bias is the tendency of people to consider themselves as able to influence randomly-generated outcomes. Investors who exhibit such a bias tend to attribute market gains to their ability to select winning stocks and trade actively in the subsequent period. We examined this hypothesis in the Tunisian stock market before and after the 2011 revolution using a causality test between market trading volume and market return. We found that Tunisian investors tend to trade more after observing high market returns and trade less after poor market performance. In the wake of the Tunisian revolution, this effect persists for one-week horizon, but disappears for one-month horizon.


Author(s):  
Suleiman Yakubu ◽  
Ajayi Adeyemi ◽  
Abass Sule ◽  
Rukaiyyat Ogunbajo

Abstract The paper examines the relationship existing between commercial property investment returns and public capital investment (budgetary expenditures) on road infrastructure in Fadikpe area, Minna (Nigeria) with the aim of determining the degree of impact of public capital investment on commercial property investment returns. The paper addresses a pertinent policy and practice question on the impact of government’s budgetary expenditures on real estate sector of the economy. Government increasingly faces funding challenges in providing new infrastructure or improvement of existing ones, thus, keen to know the areas of greater impact of its expenditures and the extent to which the benefits from the impact may go in augmenting or providing funds (through tax) for new road infrastructure provision or repair of existing ones. The research uses the before-and-after case method to identify an increase in property values (rental and sales) as measured by the trend of property investment returns before-and-after budgetary expenditures. The results show that commercial property investment returns in the area increased after budgetary expenditure (road construction) took place. The results form the basis upon which the government should consider more budgetary allocations and expenditures related to road transportation infrastructure in its budgetary allocation decisions. The results also quantify the proposed alternative source of funding (property tax) that can be harnessed via capturing the increase in property investment returns.


2021 ◽  
Vol 12 (1) ◽  
pp. 41-51
Author(s):  
Angga Febrian ◽  
Muhtad Fadly

The digital era, which increasingly becomes massive in people's lives, impacts the traditional sales methods. E-commerce companies compete in winning the competition to create superior customer value. An effective and efficient marketing strategy is needed that can influence customer purchase intention. The research focused on the effect of customer satisfaction, which created eWOM and increased brand equity on purchase intention by adding culture (collectivist culture) as the moderator variables. The research used a quantitative approach. The data were obtained from 280 respondents selected by non-probability sampling. Respondents were customers who had already bought products through e-commerce in Indonesia. The questionnaire instrument was adopted based on theories from the previous researchers. The data used the Likert scale and were analyzed using the SmartPLS 3.0. The results state a significant relationship between the independent and dependent variables. All independent variables have a significant influence on the dependent variable. However, culture as the moderator variable cannot get significant results in the relationship between all the variables. It gets irrelevant results. Hence, the results show that the moderator variable is more appropriate as the independent variable. It can directly affect purchase intention. The research contributes to testing culture as the moderator variable that makes the independent variables generalize the findings.


2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Hui Zhang

Based on social network theory and dynamic capability theory, a theoretical model is constructed that specifies the process through which relational embeddedness affects enterprise value. The authors selected 612 Shenzhen and Shanghai A-share manufacturing enterprises in the CSMAR database as sample enterprises, and a multiple regression analysis method was used to test hypotheses. The results show that (1) there is an inverted “U” relationship between relational embeddedness and enterprise value; that is, the enterprises’ relational embeddedness has an “inflection point” effect on the enterprise value; (2) the enterprises’ resource integration capability plays an intermediate role in the impact of relational embeddedness on enterprise value; (3) the market environmental dynamics and technology environmental dynamics play negative regulatory roles in the inverted “U” relationship between relational embeddedness and enterprise value, and they play different regulatory roles before and after the enterprise relational embeddedness reaches the “inflection point”; that is, before the relational embeddedness reaches the inflection point, the technology environmental dynamics plays a major negative regulatory role, while after the relational embeddedness reaches the inflection point, the market environmental dynamics plays a major negative regulatory role. Compared with the market environmental dynamics, the impact of technology environmental dynamics on the relationship between relational embeddedness and enterprise value is more significant; that is, the effect of relational embeddedness on enterprises value is more sensitive to the technology environmental dynamics.


The considerations presented in the paper concern the impact of Covid-19 on sales possibilities in the pre-paid system and development perspectives of the researched business entity. As part of its operations, this entity is responsible for the supply of fuel to nearly 4,500 customers conducting business operations throughout Poland. The study was carried out by means of the method of quantitative analysis of economic data. The acquired data constituted a closed set of 518 479 contacts collected as a result of reporting the work of the call center department. The purpose of the paper is to analyze the impact of the Covid-19 pandemic on the possibilities of acquiring new customers by the entity that sells pre-paid fuels and the prospects for its future development. The analyzes allowed showing the relationship, before and after the introduction of socioeconomic restrictions, between the number of sales contacts made and their effectiveness. It was proved that lockdown caused changes in the scope of managing executive operations within the call center of the entity. This, in turn, affected operational and management decisions at both ownership and management levels.


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