Asymmetry in Volatility: A Comparison of Developed and Transition Stock Markets

ARCH modelling framework of Engle (1982) and its GARCH generalization of Bollerslev (1986) gave a huge impetus to econometric model building in the field of financial time series with time-varying variance. The main idea of the models was to describe the most typical features of capital markets like volatility clustering, excess kurtosis and fat tails. As empirical evidence shows asymmetry is also a prominent feature of stock market returns volatility. The reaction of risk if stock returns go off the long run trajectory is different in case of positive and negative market news. Thus it is indispensable to employ asymmetric models being a modification of a traditional GARCH. In the paper we used an approach of Engle and Ng (1993) to test for asymmetric effects in stock indices of developed and Central European stock markets.asymmetry, volatility, stock market, transition

Fostering student motivation and engagement with feedback through ipsative processes

Recent feedback literature emphasises the active role of learners in feedback processes and a programmatic approach to feedback design. This conceptual paper argues for the importance of ipsative processes, i.e. processes focusing on learners’ progress as a mechanism in meeting these two requirements. It suggests that the iterative nature of ipsative processes can encourage effective, learner-centred feedback and its implementation across multiple tasks can promote the uptake of feedback in subsequent work. Using self-determination theory, the paper discusses how ipsative feedback processes create conditions which can foster students’ perceptions of autonomy, competence and relatedness, thus fostering student motivation to engage with feedback. The implementation of ipsative processes is illustrated with references to two pedagogic practices. The paper identifies the need for further empirical research investigating academic and noncognitive benefits of ipsative processes in feedback for students as well as autoethnographic work examining the implications of implementing ipsative processes for teachers

Carlyle and Calvinism

A survey of how critics have treated Carlyle\u27s religious beliefs, arguing that his Calvinist upbringing needs more consideration

The normative decision theory in economics : a philosophy of science perspective: The case of the expected utility theory

This article analyses how normative decision theory is understood by economists. The paradigmatic example of normative decision theory, discussed in the article, is the expected utility theory. It has been suggested that the status of the expected utility theory has been ambiguous since early in its history. The theory has been treated as descriptive, normative, or both. This observation is the starting point for the analysis presented here. The text discusses various ways in which economists and philosophers of economics have conceptualized the normative status of the expected utility theory, and it shows that none is satisfactory from the point of view of philosophy of science.Peer reviewe

The Tumor Suppressor Protein P53 and the Antagonizing Oncoprotein E6 from Human Papillomavirus Type 16

The tumor suppressor protein p53 transactivates genes involved in cell cycle arrest and apoptosis in response to DNA damage, cellular stress and some oncogenic proteins. The wild type polypeptide chain of p53 has four distinct domains, including the sequence specific DNA binding core domain and the C terminal tetramerization domain. p53 must retain its ability to oligomerize and bind DNA targets in vivo to fulfill its function. Using X-ray crystallography and a crosslinking strategy, the structure of a wild type tetrameric p53 core domain bound to its consensus sequence was solved. This structure gives insight into DNA bend, core domain-DNA binding cooperativity and surface residue conservation within the tetramer. Many cancers result from cells harboring mutant forms of p53 that are unable to function due to their inability to oligomerize, DNA binding defects or, in the case of human papillomavirus infection, p53 degradation. High risk forms of the human papillomvirus (HPV) infect the basal layers of stratified epithelia and express two oncoproteins, called E6 and E7, which can lead to cell cycle disruption and cervical cancer. E6 mediates its cell transformation, in part, by forming a complex with the cellular E3 ligase E6-Association Protein (E6AP) to target p53 for degradation by the ubiquitin- viii proteasome pathway. A high throughput solution screen was designed to search for small molecule inhibitors of the E6 / E6AP interaction. Of the 80,000 compounds that were screened, 30 inhibitors with IC50 values in the low-micromolar to mid-nanomolar range were confirmed using secondary assays. Two compounds were shown to specifically block p53 degradation and promote apootosis in cell lines infected with high risk forms of HPV. These HPV-E6 inhibitors provide a framework for developing HPV inhibitors with possible therapeutic applications

Eliciting, processing and enacting feedback: mechanisms for embedding student feedback literacy within the curriculum

Recent feedback literature suggests that the development of student feedback literacy has potential to address problems in current feedback practice. Students’ feedback literacy involves developing the capacity to make the most of feedback opportunities by active involvement in feedback processes. How the development of student feedback literacy can be embedded within the undergraduate curriculum has not yet been discussed in any depth. This conceptual paper fills that gap by elaborating three key mechanisms for embedding feedback literacy within the curriculum: eliciting, processing and enacting. These are illustrated through enhanced variations of four existing practices: feedback requests, self-assessment, peer review, and curated e-portfolios. The discussion summarizes the key implications for practice and identifies the need for further empirical work investigating how students elicit, process and enact feedback in situ, and longitudinal research exploring the impact of curriculum design on the development of student feedback literacy

How behavioural research has informed consumer law : The many faces of behavioural research

In this chapter we outline a history of various strands of behavioural research pertaining to consumer behaviour. We first look at the current field of consumer behaviour research qua a sub-discipline of marketing. This discussion reveals the multi-disciplinary nature of the field, which turns us next to the history of general trends in psychology that exert influences on many disciplines, and then to more specific developments in behavioural research at the intersection of economics and psychology. In the last section we review how these strands of behavioural research have been taken up by legal scholars at various points in history.Peer reviewe

Behaviour change : extralegal, apolitical, scientistic?

Peer reviewe