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Research on biases in investment decision-making is indubitably important; however, studies in this context are relatively scarce. Unpacking bias has received attention in the psychological literature yet very little attention from management accounting research. This bias suggests that the perceived probability that an event will occur generally increases when the event's description is unpacked into a disjunction of subevents. The authors hypothesize that for a capital investment decision context, managers' judgement of the probability of a future event depends on whether the event is described as one packed event or is unpacked into several disjoint subevents. Additionally, the authors propose that altering the format of the description of an event's occurrence from percentage values to relative frequencies reduces unpacking bias.

To test the study’s hypotheses, the authors conducted two experiments based on a 3 × 2 mixed experimental design in which manager participants were asked to estimate the failure probabilities of technical systems in the context of an investment decision.

The authors provide evidence that unpacking bias occurs in an investment scenario, which can be characterized as a high-stakes decision context. Changing the format in which probabilities are presented from percentage values to relative frequencies significantly reduces the bias.

Additional instructions did not further reduce unpacking bias.

For investment decisions under uncertainty, performance indicators in management templates should be presented in relative frequencies to improve managerial decision-making. The fact that the authors could not show an additional effect of instructions in management accounting reports indicates that it is challenging for management accountants to reduce the biased decision-making of managers by “teaching” them through the provision of instructions.

The authors contribute to accounting research by illustrating unpacking bias and by deriving a debiasing mechanism in a capital investment decision context.

This paper aims to study the internationalisation of management accounting research in the German-speaking countries and to analyse whether researchers from these countries rely on their intellectual heritage or adapt to the conventions prevailing in the international community.

This paper provides a research taxonomy of 273 papers published by management accounting researchers from the German-speaking countries between 2005 and 2018 in domestic and international journals with regard to topics, settings, methods, data origins and theories of these papers. The study also systematically compares these publications with the publications by international scholars as synthesised in selected prior bibliometric studies.

The findings suggest that German-speaking researchers increasingly adapt to the conventions prevailing in the international management accounting literature. Indicative of this development is the crowding out of traditional core areas of German-speaking management accounting such as cost accounting by management control topics. The study also finds that German-speaking researchers increasingly rely on the research methods and theories prevailing internationally.

The paper documents considerable changes in the publications of management accounting researchers from the German-speaking countries. These changes raise the question how other national research communities internationalise and whether these processes lead to a greater homogenisation of international management accounting research, which might impair the advancement of management accounting knowledge.

This paper provides first empirical evidence on how management accounting research conducted in the German-speaking countries has changed in the course of the internationalisation of the research community and builds an important basis for future research in other geographic settings.