Expressions of confidence can give leaders credibility. In the political realm, they earn votes and public approval for decisions made in office. Such support is justified when displayed truly a sign that leader (whether candidate or an incumbent) competent. However, politicians are overconfident, result be election incompetent adoption misguided policies. this article, we discuss processes lea...

Objective(s): The application of synthetic antimicrobial and antifungal compounds is reducing in the last decades in the food and nutrition fields owing to their various side effects and increasing interest of consumers to eat natural foodstuffs without artificial constituents. Clove (Syzygium aromaticum) has numerous medicinal properties, including analgesic, antiseptic, stimulants, carminativ...

Cerium oxide (CeO₂) represents an important nanomaterial with wide ranging applications. However, little is known regarding how CeO₂ exposure may influence pulmonary or systemic inflammation. Furthermore, how mast cells would influence inflammatory responses to a nanoparticle exposure is unknown. We thus compared pulmonary and cardiovascular responses between C57BL/6 and B6.Cg-Kit(W-sh) mast ce...

Elicitation of expert opinion is important for risk analysis when only limited data are available. Expert opinion is often elicited in the form of subjective confidence intervals; however, these are prone to substantial overconfidence. We investigated the influence of elicitation question format, in particular the number of steps in the elicitation procedure. In a 3-point elicitation procedure,...

BACKGROUND AND OBJECTIVES Overconfidence in errors is a well-replicated cognitive bias in psychosis. However, prior studies have sometimes failed to find differences between patients and controls for more difficult tasks. We pursued the hypothesis that overconfidence in errors is exaggerated in participants with a liability to psychosis relative to controls only when they feel competent in the ...

When a CEO holds the title of Chairman of the Board, the board has the formal authority, but the CEO often holds the leadership. This paper shows that if the board is not independent enough to discipline a CEO, it is optimal for the board to take leadership by separating the titles. However, the board (or shareholders) is better-off if it can increase its independence without separating the tit...

Theoretical models predict that overconfident investors will trade more than rational investors. We directly test this hypothesis by correlating individual overconfidence scores with several measures of trading volume of individual investors (number of trades, turnover). Approximately 3000 online broker investors were asked to answer an internet questionnaire which was designed to measure vario...

Previous researches support that graphs are relevant decision aids to tasks related to the interpretation of numerical information. Moreover, literature shows that different types of graphical information can help or harm the accuracy on decision making of accountants and financial analysts. We conducted a 4×2 mixed-design experiment to examine the effects of numerical information disclosure on...