2,146 research outputs found
Experimental study of implications of SFAS 131: The effects of the new standard on the informativeness of segment reporting
This paper analyzes whether the new business segment reporting disclosure rules, SFAS 131, will actually provide capital market participants with more predictive ability than the previous rules. For this we conduct three experiments. Two experiments with advanced accounting students as subjects, where the experiments differ in the firm the subjects analyze, and the third with professional financial analysts. In each experiment we provide one group of subjects with accounting reports based on the new standard (New Rules Group, NRG), and another group with reports based on the old standard (Old Rules Group, ORG). We ask both groups to forecast several accounting and market values of a firm. We then compare the performance predictions and analyses of the two groups. Most of the forecasts of the NRG are neither significantly different from those of the ORG, nor significantly more accurate. Subjects also report the variables that they consider important in their analysis. 25% of the NRG students in Experiment I mention the segment data as being central in their decisions and 33% say they used segment or sector data. Among the analysts in Experiment II the corresponding percentages are 0% and 60%, respectively. Also in experiment III, where the subjects rank the top 4 variables they use in their predictions according to importance, segment repots receive a mediocre rank. It therefore appears that the reports according to the new rules, whereas noticeable by the subjects, do not have a major positive impact on their responses. The subjects also exhibit a considerable degree of overconfidence. --segment reporting,FASB 131,experimental economics,overconfidence
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On the Nature of Transitions: the Middle to Upper Palaeolithic and the Neolithic Revolution
This article discusses two major revolutions in the history of humankind, namely, the Neolithic and the Middle to Upper Palaeolithic revolutions. The course of the first one is used as a general analogy to study the second, and the older one. This approach puts aside the issue of biological differences among the human fossils, and concentrates solely on the cultural and technological innovations. It also demonstrates the issues that are common-place to the study of the transition from foraging to cultivation and animal husbandry can be employed as an overarching model for the study of the transition from the Middle to the Upper Palaeolithic. The advantage of this approach is that it focuses on the core areas where each of these revolutions began, the ensuing dispersals and their geographic contexts.Anthropolog
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The Impact of Radiocarbon Dating on Old World Archaeology: Past Achievements and Future Expectations
Anthropolog
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Guest Editorial: East to WestâAgricultural Origins and Dispersal into Europe
Anthropolog
Opportunities and continuities of shellfish gathering and their relationship to major steps in human evolution: A response to Jerardino.
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The Natufian Culture and the Origin of the Neolithic in the Levant
Anthropolog
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Early and Middle Pleistocene Faunal and Hominins Dispersals through Southwestern Asia
This review summarizes the paleoecology of the Early and Middle Pleistocene of southwestern Asia, based on both flora and fauna, retrieved from a series of âwindowsâ provided by the excavated sites. The incomplete chrono-stratigraphy of this vast region does not allow to accept the direct chronological correlation between the available sites and events of faunal and hominin dispersals from Africa. It also demonstrates that hominins survived in a mixed landscape of open parkland with forested surrounding hills. In addition, the prevailing environmental conditions are not sufficient to explain successful adaptations to new ecological niches away from the African savanna of the bearers of âcore and flakeâ and the Acheulian industries, The differences in knapping and secondary shaping of stone artifacts probably reflect the learned traditions of different groups of hominins. The current distribution of lithic industries across Eurasia is undoubtedly incomplete due to lack of cultural continuities as well as paucity of field research in several sub-regions. This observation supports the contention that what we view as a constant stream of migrants was actually interrupted many times. The continuous occupation of southwestern Asia by the makers of the Acheulian is in contrast with neighboring regions such as the Iranian plateau and Eastern Europe. A more complex model is required to explain the recorded Eurasian archaeologicalâcultural mosaic.Anthropolog
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