منابع مشابه
Age-aggregation bias in mortality trends.
In PNAS, Case and Deaton (1) show a figure illustrating the “marked increase in the all-cause mortality of middle-aged white non-Hispanic men and women in the United States between 1999 and 2013.” The authors state that their numbers “are not age-adjusted within the 10-y 45–54 age group” (1). We suspected an aggregation bias and examined whether the increase in aggregate mortality rates could b...
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School Quality, Educational Attainment and Aggregation Bias Data from 31 countries participating in the Programme for International Student Assessment (PISA) is used to estimate education production functions for reading literacy. The analysis suggests that the probability of finding statistically significant and correctly signed class size effects increases the higher the level of aggregation ...
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We study a model of collective decision making in which agents vote on the decision repeatedly until they agree, with the agents receiving no exogenous new information between two voting rounds but incurring a delay cost. Although preference conflict between the agents makes information aggregation impossible in a single round of voting, in the equilibrium of the repeated voting game agents are...
متن کاملCausal diagrams, information bias, and thought bias
Information bias might be present in any study, including randomized trials, because the values of variables of interest are unknown, and researchers have to rely on substitute variables, the values of which provide information on the unknown true values. We used causal directed acyclic graphs to extend previous work on information bias. First, we show that measurement is a complex causal proce...
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Many information sources, including standard accounting reports, employ aggregation. Although aggregation is commonly associated with loss of information, this paper shows that it can sometimes enhance information by deterring information cascades. Aggregated information increases the uncertainty faced by interested observers. This makes observers more willing to abide by their own views and ch...
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ژورنال
عنوان ژورنال: SSRN Electronic Journal
سال: 1991
ISSN: 1556-5068
DOI: 10.2139/ssrn.2127217