scholarly journals Impact of seasonal climatic variability on rice yield in Bangladesh

2021 ◽  
Vol 22 (2) ◽  
pp. 165-171
Author(s):  
JAIONTO KARMOKAR ◽  
M. AMINUL ISLAM ◽  
M. RAKIB HASSAN ◽  
M.M. BILLAH

In Bangladesh, 75% of the total cultivable area is under rice cultivation producing 25 million tons of rice and plays a vital role in the country’s GDP. The climatic variability is playing an important role in affecting the rice production. In this study, the impact of climatic variability (average maximum temperature (aMaxTemp), average minimum temperature (aMinTemp) and average rainfall (aRainfall)) on rice yield was determined in two different regions (northern and southern) of Bangladesh.The variability of rice yield and climate factors was determined by using the Ordinary Least Square (OLS) method. The data was analyzed over the 44-years period (1971 to 2014) in order to estimate the magnitude of these fluctuations statistically and graphically. We observed that the climate variables had significant effect on rice yield that varies among three rice crops (e.g., Aus, Aman, and Boro rice). We observed that, aMaxTemp has positive effects for Aus and Aman rice yield but negative effect on Boro rice yield. On the other hand, aMinTemp has negative effects on Aus and Aman rice yield but has positive effect on Boro rice yield. The aRainfall has a positive relationship with all rice yields in both the regions.

2019 ◽  
Vol 30 (1) ◽  
pp. 95-103
Author(s):  
J Karmokar ◽  
MM Billah ◽  
MA Haque

A study was undertaken to study the impact of seasonal temperature variation on Aman and Boro rice production in Barisal division of Bangladesh. The study revealed that the relationship between changing patterns of seasonal mean temperature and yield of rice, which illustrates the average mean temperature for the correlation of time series data from 1958-2008. The regression model is used to analyze the different temperature trends, and to identify the possible factors and causes of these differences. The value of t-statistic for slope and p-value for different regression equations are estimated. Results show that the average maximum temperature is risk increasing for Boro, while it is risk decreasing for Aman for the period of 2006-2008. Besides, minimum temperature is risk increasing for Boro during 1994-2008 but it is risk decreasing for Aman except the year 1998. We observed that the summer temperature has been rising up during the period 1958-1974 and fallen down for 1992-2008. The average annual temperature changes from 0.5˚C to 1˚C over the period from 2005 to 2008 which impact on Aman and Boro rice yield. Therefore, the predictive approach provides an outline for future risk of the minimum temperature that has the impact on rice yield than maximum temperature, which can be used for rice production for its better management strategies. Progressive Agriculture 30 (1): 95-103, 2019


2021 ◽  
pp. 232948842110239
Author(s):  
Masaki Matsunaga

Digital transformation provokes a great deal of uncertainty among employees. To gain insights into how employees manage the uncertainty driven by digital transformation and also how leaders can support them, this study has drawn on the theory of communication and uncertainty management (TCUM), which posits that the impact of uncertainty varies by how individuals appraise it and social support enhances positive appraisal. Based on those tenets, the current study advanced the following hypotheses: (a) uncertainty has direct and indirect negative effects on employees’ appraisal of digital transformation, self-efficacy, and job performance; (b) in contrast, direct supervisors’ transformational leadership has direct and indirect positive effects on appraisal, self-efficacy, and job performance; and also (c) transformational leadership moderates the impact of uncertainty. SEM with 4-wave time-separated data ( N = 873 employee-supervisor dyads in Japan) found support for these hypotheses. The obtained findings are discussed with reference to TCUM, transformational leadership, and other relevant literature.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Denni Arli ◽  
Fandy Tjiptono

PurposeReligious doctrines generally encourage people to behave ethically. However, in daily life, individuals notice inconsistencies between religious beliefs and behavior, leading them to ask, in the context of commerce, why religious consumers would behave unethically. The purpose of this study was to investigate the impact of consumers' intrinsic and extrinsic religiosity on their ethical behavior. Specifically, the moderating effect of ethical ideology on the relationship between Indonesian consumers' religiosity and their ethics was examined by means of a survey.Design/methodology/approachThe data derived from the questionnaire were complemented by convenience samples of Indonesians living in Daerah Istimewa Yogyakarta (DIY) in central Java. The researchers distributed 600 questionnaires in two major shopping malls and several housing areas in the region, of which 467 were completed and returned, for an overall response rate of 77.8%.FindingsThe results indicated that the participants' intrinsic religiosity negatively impacted their ethical beliefs and was mediated by their idealistic ethical ideology. The present study also found that idealism had negative effects on three of the four dimensions of the consumer ethics scale (CES) (actively benefiting, passively benefiting and questionable behavior), while relativism had positive effects on two of the dimensions (passively benefiting and questionable behavior.Research limitations/implicationsOne limitation of the present study was that the analysis did not distinguish among the religions practiced by the respondents to the questionnaire.Originality/valueThis is one of the first few studies investigating the mediating role of ethical ideology in a religious society. This study contributes to the literature on these issues in theoretical and managerial terms by extending the Hunt-Vitell theory (1986) to the context of consumer ethics.


2016 ◽  
Vol 2 (3) ◽  
pp. 344
Author(s):  
Twana Faraidun Hussein

This research tries to access to a range of outcomes, and to answer the fundamental question, a search (What is the impact of the means of communication on family relationships?).Try researcher through the form of a questionnaire to collect information in the field of the research community and in order to achieve his goal, And it relied on the questionnaire form for being an important means used extensively in sociology studies, The center of the city of Sulaymaniyah spatial boundaries of the search, where it is taken (200) and a sample search unit and distributed to three different areas (rich, middle and poor) by taking a stratified random sample, The fact that the population of the city of Sulaymaniyah different in terms of economic and cultural level, it's easy to take the mixed researcher and different sample representing the research community in terms of level, category, and class. They were assembled for the purpose of research and study.      It must be pointed out that this research is particularly important at the present time because the means of communication have spread widely in the Kurdish community and become accessible to everyone on the one hand, on the other hand, the number of users of these methods is increasing day by day, This is in addition to the increased demand for them constantly, making conduct such research in this importance area to see its impact on family relationships, and knowledge of its money from the effects (negative and positive) It is known that this means a double-edged her weapon of negative and positive effects at the same time, It must be the effort to reduce the negative effects of these tools and become members of the community in the service, and most importantly of all, do educate individuals on how to deal with these tools properly. It also offers search a set of proposals and recommendations to the concerned authorities to work out and strengthen the community in front of the challenges of the era of globalization of communications and response, where he became the Kurdish community a society open to the outside world through these means, which resulted in a change of values and social norms and behaviors that were adhered to by members of the community.


2021 ◽  
Vol 11 (4) ◽  
pp. 5361-5374
Author(s):  
Manaswini Tripathy ◽  
Mithunchandra Chaudhari

Music has proven to play a vital role in social and emotional development in teenagers and young adults. From contemplation, developing self-identity, understanding interpersonal relationships, and providing possibilities of experience mastery, agency, and self-control with the help of self-directed activities, music helps its audience develop in all aspects of life. In specific, Rock music, since its existence has been more than entertainment, artists expressed themselves and shared their opinions through their musical pieces. Infamous for promoting drugs and alcohol, Rock Music used its platform to enlighten the audience about taboo topics like racism, inequality, and other social issues. This research paper uses a qualitative methodology approach to understand Rock Music listeners’ points of view. Data was collected through ‘in-depth interviews’ of 15 participants hailing from different parts of the country. Rock Music has several positive effects on the listeners. Rock can elevate moods, induce emotions, helps the listeners be more productive and creative with their everyday work, and constantly motivate them to do better in every aspect of life. Rock provides a platform to express feelings and vent out all the angst, especially for those who otherwise do not voice their opinions because of their nature in general. Rock Music has been able to shape personalities, characteristics, and thought processes. Moreover, majorly, Rock Music helps people with anger management.


The purpose of this research is to seek and identify the impact teamwork has on organizational performance. The research to understand the teamwork quality, team cohesiveness and team performance in employee performance, identify the positive or negative effects of teamwork on employees and to examine the impact of teamwork on organization performance. Therefore, it is to determine how teamwork could effect and improve University employee’s performance within the organization. In fact, it is also to understand on how methods like teamwork quality, team cohesiveness, and teamwork performance have could be used to have positive effects in employee overall performance. The research study used correlation techniques in order to analyze the relationship between two variables that was Teamwork and Organization Performance. In many of the journals and article that was collected, there was clear evidence that teamwork and other measures of team performance are positively related with organization performance. The study of the research shown that there was a significant positive impact of teamwork on organizational performance and employee’s overall performance.


ILR Review ◽  
1987 ◽  
Vol 40 (3) ◽  
pp. 430-441 ◽  
Author(s):  
Katherine P. Dickinson ◽  
Terry R. Johnson ◽  
Richard W. West

This paper provides the first estimates of the net impact of CETA participation on the components of CETA participants' post-program earnings. Employing a sample of 1975 CETA enrollees and comparison groups drawn from the March 1978 CPS using a nearest-neighbor matching technique, the authors estimate statistically significant negative effects on men's earnings and statistically significant positive effects on women's earnings. These results stem partly from the impact of CETA participation on the likelihood of being employed after leaving the program (negative for men, positive for women), but also from a negative impact on hours worked during the year and hourly wage rate for men and a large positive impact on hours worked per week and weeks worked per year for women.


2020 ◽  
Author(s):  
Désirée I Christofzik ◽  
Steffen Elstner

Abstract This paper explores the international transmission of U.S. tax shocks. Using structural vector autoregressions, we study the impact on the German economy and on German tax legislation. Our results suggest that, after a U.S. tax cut, German GDP increases only moderately. Positive effects via the income channel outweigh negative effects stemming from price developments. Significant changes in the transmission channels arise by distinguishing between the types of the U.S. tax shock. German tax policy either reacts with diametric measures, or remains passive when considering the whole sample period. For a sample starting in 1980, we find that, in particular, after U.S. corporate income tax cuts, tax reductions are also implemented in Germany.


2018 ◽  
Vol 31 (2) ◽  
pp. 265-286 ◽  
Author(s):  
Divya Verma Gakhar ◽  
Abhijit Phukon

Purpose The purpose of this paper is to review several influential empirical studies that examine the performance of state-owned enterprises (SOEs). The paper undertakes a citation analysis of journals, authors and titles in the area of privatization and firm performance in general, and assesses the impact of privatization on the performance of SOEs in particular. Design/methodology/approach The methodology is based on a systematic and structured review of over 100 papers published in economics, public management, business strategy and related social sciences. The systematic review is based on citation analysis of journals, authors and titles. The journal and author citation counts were tabulated by leveraging the databases of SCImago Journal Rankings and Google Scholar and filtered it to find out the most highly cited journals and authors. The structured review is based on the framing opinion with respect to major findings, variables selected, measurement techniques and statistical tools applied by different researchers. The impact is measured through coding a value “P” in case of positive effects, “N” in case of negative effects and “NT” in case the study found both positive and negative effects. Findings The citation analysis reveals that American Economic Review, Journal of Financial Economics, Review of Financial Studies and Journal of Finance as the top-cited journals, and Megginson and Netter (3,468), Megginson et al. (1,737), Djankov and Murrell (1,356), Boardman and Vining (1,320), Balsam et al. (1,094) and DeWenter and Malatesta (1,018) as the top-cited authors in this particular research field. While majority research studies have revealed a significant improvement in the performance of SOEs in the post-privatization period, few studies have reserved their impact as neutral or even negative in some respects. Originality/value Given that economic transitions, corporate governance, and performance of SOEs have attracted a great attention from public management and business strategy scholars in recent years, this paper aims to summarize a large number of empirical studies that examine the performance of SOEs. The paper would be useful to future researchers especially the beginners and early career researchers in terms of its current trends, selection of variables, measurement techniques and statistical tools applied.


2020 ◽  
pp. 109634802097101
Author(s):  
Eojina Kim ◽  
Juan Luis Nicolau

The Menu Labeling Act (MLA), which requires restaurants to provide customers with nutritional information, has encountered implementation difficulties for more than 8 years, owing to the imposition of administrative costs on restaurant firms. By investigating the market value of 46 restaurant firms that publicly trade in the United States, this research analyzes the impact of MLA-related announcements on the market value of foodservice firms. Announcements associated with restrictions tend to reduce restaurant market value by 0.29% per day (market value is defined as the number of shares times the share price), whereas announcements related to flexibility increase such market value by 0.80%. The final guideline and compliance date announced by the Food and Drug Administration has provoked significant negative effects on restaurant market value. Meanwhile, the congress’ proposed opposition act has elicited great positive effects. This study provides important implications for policy makers and practitioners in the food service industry.


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