Open this publication in new window or tab >>2000 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]
It is often said, among practicians and theorists, that doing business is about taking risks. This thesis is focused on the relationship between doing business, and thereby earning a return, and the inherent risk taking. A profitability risk perspective of the firm is taken, for which an appropriate theory and an accounting-based research methodology is developed.
The empirical part of the thesis deals with the financial performance of Swedish industrial firms. In particular, it is focused on profitability and its stability over time. Several hypotheses concerning risk and return are specified and then tested in a large quantitative study involving 123 industrial firms investigated over the period 1982-96. According to economic theory, there is a positive relationship between risk and return. Thus when controlling for risk no firm can achieve an abnormally high return in the long run. The empirical results stand in contrast with several of the stated hypotheses.
The main conclusion from the empirical study is that firms earning a high return also earn a more stable return over time, whereas firms earning a low return have a more volatile return over time. If stability in return is a valid measure of risk, then the results are in conflict with economic theory. Others have labelled similar findings a "risk-return paradox".
Several other associations between financial variables have been investigated. Some of the results confirm hypotheses concerning risk, others do not. It seems as if the volatility in profitability is mostly explained by operating risk, and then particularly the volatility in sales. But it is shown that the sensitivity to sales volatility also has an important role in explaining operating risk. Furthermore, components of operating and financial risk are related to each other, indicating that management has some ability to influence the level of risk.
To explain a negative association between risk and return, the author returns to the distinction between risk and uncertainty. It is argued that product markets are not as efficient as, e.g., financial markets. The conditions underlying a positive risk-return relationship are not fulfilled. Other explanations of the paradox could be misspecifications of risk, or non-linear risk-return relationships. Without efficient markets, there can never be a positive risk-return relationship and it is questionable whether the efficiency of product markets will ever be adequate for a positive risk-return relationship to be achieved.
Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2000
Keywords
Business studies, Företagsekonomi
National Category
Business Administration
Identifiers
urn:nbn:se:hig:diva-38242 (URN)9932501832 (ISBN)
Public defence
2000-05-19, hörsal 2, Ekonomikum, Uppsala University, 13:15
2000-04-282022-03-252022-03-25Bibliographically approved