The impact of credit rating announcements on credit default swap spreads

We document the ability of the credit default swap (CDS) market to anticipate favorable as well as unfavorable credit rating change (RC) announcements based on more extensive samples of credit rating events and CDS spreads than previous studies. We obtain four new results. In contrast to prior published studies, we find that corporate RC upgrades do have a significant impact on CDS spreads even though they are still not as well anticipated as downgrades. Second, CreditWatch (CW) and Outlook (OL) announcements, after controlling for prior credit rating events, lead to significant CARs at the time positive CW and OL credit rating events are announced. Third, we extend prior results by showing that changes in CDS spreads for non-investment-grade credits contain information useful for estimating the probability of negative credit rating events. Fourth, we find that the CDS spread impact of upgrades but not downgrades is magnified during recessions and that upgrades and downgrades also differ as to the impact of simultaneous CW/OL announcements, investment-grade/speculative-grade crossovers, current credit rating, market volatility, and industry effects.     

‘Economics with Training Wheels’: Using Blogs in Teaching and Assessing Introductory Economics

Blogs provide a dynamic interactive medium for online discussion, consistent with communal constructivist pedagogy. The author of this article describes and evaluates a blog assignment used in the teaching and assessment of a small (40–60 students) introductory economics course. Using qualitative and quantitative data collected across four semesters, students’ participation in the blog assignment is found to be associated with student ability, gender, and student perceptions of the blog. Importantly, students with past economics experience do not appear to crowd out novice economics students. Student performance is positively associated with the quality of their blog participation after controlling for student ability, suggesting that a focus on quality of student engagement could further improve learning outcomes. Students generally report overall positive experiences with the blog assignment.     

The Collected Works of F.A. Hayek,Vol. 12: The Pure Theory of Capital

This paper discusses the Brazilian financial system and the impact of liquidity preference on regional development in Brazil. In the Post-Keynesian literature, endogenous money is introduced into economic activity through the credit provided by banks. The degree to which banks exhibit lower or higher liquidity preference is crucial to this process. Here we estimate the effect of liquidity preference and other financial variables on the number of Brazilian states' patents, in order to gauge the importance of the bank system to technological progress and regional development.     

A discretionary model of industrial buying

This paper demons!rules that product differentials exert an important influence on the demand for industrial inputs. It presents a utiliu-maximizing model of industrial buying which integrates the empirical findings of marketing scholars with orthodox economic theory. The model receives statistical support in the form of partial correlations of industrial sourcing determinants and a factor-analytical extraction of hypothetical constructs corresponding to features which in the model influence sourcing decisions.     

The demand for computer services: A disaggregate decision model

Pricing schedules for computer resources have traditionally been based on ‘cost-recovery’ principles. While economists have begun to address pricing based on marginal congestion costs, most models take demand to be exogenous and given. Discrete alternatives are inadequately treated, and aggregation of data precludes any assessment of the impact of transaction size on consumers' decisions. Using disaggregated data, this paper derives empirical results confirming that consumers are strongly influenced by transaction sizes. Simulation experiments demonstrate that price incentives designed to modify the use of computer resources are considerably more effective if the distribution of demand is weighted towards large transactions.     

‘So,what is it? And do I like it?’ New product categorisation and the formation of consumer implicit attitude

Prior literature on knowledge transfer learning suggests that cognitive effort is required to categorise new products and to develop attitudes toward them. This study investigates whether a single exposure to category-related cues of a new product can trigger successful categorisation and lead to attitude formation. A total of 250 respondents were confronted with a fictitious new product, in condition of either high- or low-attention devoted to the new product. We found that a single exposure to category-related cues of a new product not only led to the participants’ categorisation of the new product into the targeted category independently of the attention level, but also shaped their implicit and explicit attitudes toward the new product. However, a minimum level of attention was required to observe the formation of implicit attitudes while explicit attitudes were not fully developed.     

Exploring SME cybersecurity practices in developing countries

The continued use of information technology systems by small and medium enterprises (SMEs) in developing countries has the potential to bring significant benefits but, at the same time, expose them to online cybersecurity threats. Addressing these threats is, therefore, of paramount importance for developing countries, not only because SMEs are seen as the vehicle for employment and job creation, but because research on SMEs and cybersecurity in this context is limited. This study is a contribution toward addressing this gap.

The purpose of this study is, therefore, to explore SME cybersecurity practices and the challenges they face in developing countries. The goal is to sensitize practitioners and government institutions about the challenges and practices faced by SMEs, so that the various parties can work collaboratively in providing context-specific solutions to address these challenges and improve current cybersecurity practices. The study follows a qualitative enquiry approach to solicit information from three South African SMEs that had implemented cybersecurity practices. The findings show that an SME’s perception of cybersecurity is constrained by internal factors of budget, management support, and attitudes. Further findings show that SMEs’ cybersecurity practices are affected by the landscape of cybersecurity, as well as institutional pressures.     

Behavioral frontiers in choice modeling

We review the discussion at a workshop whose goal was to achieve a better integration among behavioral, economic, and statistical approaches to choice modeling. The workshop explored how current approaches to the specification, estimation, and application of choice models might be improved to better capture the diversity of processes that are postulated to explain how consumers make choices. Some specific challenges include how to capture and parsimoniously describe heterogeneous mixes of heuristic choice rules, methods for building realistic models of choice, and nontraditional methods for estimating models. An agenda for important future work in these areas is also proposed.