Search results for "Transaction"
showing 10 items of 229 documents
2019
Using the method of third-person elicitation and 171 interviews in Dar es Salaam, Tanzania, I examine one form of forced marriage, ‘marriage on the mat’ (ndoa ya mkeka). In it, girls’ parents use t...
3D Matrix-Based Visualization System of Association Rules
2017
With the growing number of mining datasets, it becomes increasingly difficult to explore interesting rules because of the large number of resultant and its nature complexity. Studies on human perception and intuition show that graphical representation could be a better illustration of how to seek information from the data using the capabilities of human visual system. In this work, we present and implement a 3D matrix-based approach visualization system of association rules. The main visual representation applies the extended matrix-based approach with rule-to-items mapping to general transaction data set. A novel method merging rules and assigning weight is proposed in order to reduce the …
The moderator role of followers’ personality traits in the relations between leadership styles, two types of task performance and work result satisfa…
2014
Authentic leadership is changing our understanding of what makes good leadership. However, few studies have explored how followers’ individual differences and the nature of the task they perform affect its relation to followers’ work outcomes. We examine the moderator role of two core task types (intellective vs. generative) and two personality traits (conscientiousness and emotional stability) in the relationship between two leadership feedback styles (authentic vs. transactional) and task performance or work result satisfaction in a two-wave experiment. The sample consisted of 228 participants enrolled in an organizational psychology course, 34% of whom had work experience. Our results sh…
Ancillary Services in the Energy Blockchain for Microgrids
2019
The energy blockchain is a distributed Internet protocol for energy transactions between nodes of a power system. Recent applications of the energy blockchain in microgrids only consider the energy transactions between peers without considering the technical issues that can arise, especially when the system is islanded. One contribution of the paper is, thus, to depict a comprehensive framework of the technical and economic management of microgrids in the blockchain era, considering, for the first time, the provision of ancillary services and, in particular, of the voltage regulation service. When more PV nodes are operating in the grid, large reactive power flows may appear in the branches…
Factors Influencing Accounting Outsourcing Practices among SMEs in Pakistan Context: Transaction Cost Economics (TCE) and Resource-Based Views (RBV) …
2014
Published version of an article from the journal:International Journal of Business and Management. Also available from the publisher:http://dx.doi.org/10.5539/ijbm.v9n7p19 The present study was conducted to identify factors that affect Pakistani manufacturing SMEs decisions to outsource management accounting practices in terms of transaction cost economics (TCE) and resource-based view (RBV). A survey of 302 SMEs was carried out using convenience sampling, a personal interview owners/managers/CFOs located in 9 major cities of Pakistan. Our multiple regression analysis revealed that the frequency of non-routine tasks, asset specificity, opportunism, trust in accountant and competition has a …
Emergence of statistically validated financial intraday lead-lag relationships
2014
According to the leading models in modern finance, the presence of intraday lead-lag relationships between financial assets is negligible in efficient markets. With the advance of technology, however, markets have become more sophisticated. To determine whether this has resulted in an improved market efficiency, we investigate whether statistically significant lagged correlation relationships exist in financial markets. We introduce a numerical method to statistically validate links in correlation-based networks, and employ our method to study lagged correlation networks of equity returns in financial markets. Crucially, our statistical validation of lead-lag relationships accounts for mult…
Regulating Internet Trade in CITES Species
2013
International trade in species that are or may be endangered by collection from the wild is regulated under the Convention on International Trade in Endangered Species of wild fauna and flora (CITES) for 176 member States (Parties). Internet commerce is a relatively new route for such trade. In 2007, the CITES Secretariat asked Parties to collect information on internet wildlife trade and report problems and implemented regulations. The reports indicated it was difficult to even approximate the influence of e-commerce on CITES-listed species (CITES Secretariat 2009). We report a case study in which we quantified international transactions over an internet auction site of CITES-listed cacti …
Child-centered and teacher-directed practices in relation to calculation and word problem solving skills
2019
Abstract This study examined transactional associations between classroom-level math skills and teaching practices. Participants were 523 children from 31 classrooms. Math skills were assessed three times. Teaching practices were observed in Grades 1 and 3. Child-centered practices promoted subsequent calculation skills whereas teacher-directed practices were associated with a lower level of calculation skills. Higher problem-solving skills at Grade 2 predicted more child-centered practices and less teacher-directed practices in third grade. Moreover, calculation skills mediated the effect of child-centered practices on problem-solving skills. The results suggest that teaching practices and…
The Paradox of Effectiveness: Growth, Institutionalisation and Evaluation of Anti-Mafia Policies in Italy
2004
This contribution focuses on Italian policies that have been envisaged and implemented to combat, prevent or contain mafia-type organised crime.1 After having shown that a proper analysis of anti-mafia policies is strangely lacking (section 2), policies directly addressing the mafia are dealt with, hinting at the norms concerning specific criminal offences, vast investigatory powers and penetrating preventive measures, financial transactions and money laundering, collaborators of justice, the peculiarity of mafia trials, judicial attitudes and sanctions (section 3.1). Section 3.2 presents the wide variety of other policies addressing civil society and public administrations, and only indire…
Supporting Dispute Handling in E-Commerce Transactions, a Framework and Related Methodologies
2004
An E-commerce transaction is a means to conduct particular commercial activities using the global digital E-commerce infrastructure. We concentrate here on business to customer (B-to-C) E-commerce transactions. These transactions are based on protocols offered by the global infrastructure, primarily the Internet. Using electronic means to do business can greatly improve the efficiency of the business transactions. It, however, poses some problems that were rarely considered to be important before. One class of problems is caused by the behavior of untrusted participants. For reasons such as dishonesty, disputes may arise. In the general case, when a dispute arises an untrustworthy participa…