The study proposes and tests a risk-free rate model that simultaneously lets the risk-free rate migrate between rating categories as risk-free rate ranges, and follow a random walk within rating categories as risk-free rate ranges. Although the study arbitrarily assigned rating categories, and...

The study inquires whether ratings and rating changes in particular have anyimpact on bond prices. In doing so, the price data of a number of corporate vanillabonds were investigated over corresponding rating change event periods.For various reasons, the South African Bond Market could not...

Grounded theory is used to examine the relationship between benefit and innovation. The benefits of a broad array of products were considered, and a list of benefit and functionality categories was devised. 84 products were considered, with little (no) restriction on brand, industry, or time...

The study examines social entrepreneurship from the perspective of: objective and philosophy (why social entrepreneurs are social entrepreneurs), opportunity identification (how social entrepreneurs recognise opportunities), implementation (how social entrepreneurship is implemented), and social...

The study examines the perceptions of entrepreneurs and innovators regarding radical innovation (RI). Emphasis was squarely on the perceptions innovators hold of RI, to lay bare psyche and mindset in this regard. Given this specific focus, experience of RI was not deemed necessary, only general...

The study examines rating migration, and default probability term structures obtained from rating migration matrices. It expands on the use of rating migration matrices with reduced form bond valuation models, by formally delineating the probability of default according to the likely rating...

The study proposes and tests a risk-free rate model that simultaneously lets the risk-free rate migrate between rating categories as risk-free rate ranges, and follow a random walk within rating categories as risk-free rate ranges. This is seen as a more accurate modelling of the risk-free rate,...