Now showing items 1-10 of 10

    • Antecedents and effects of trust in forecasting advice 

      Goodwin, P.; Gönül, M. S.; Önkal D. (Elsevier, 2013)
      Forecasting support systems (FSSs) have little value if users distrust the information and advice that they offer. Two experiments were used to investigate: (i) factors that influence the levels of users’ stated trust in ...
    • The effects of feedback and training on the performance of probability forecasters 

      Benson, P. G.; Önkal D. (Elsevier, 1992)
      An experiment examined the effects of outcome feedback and three types of performance feedback-calibration feedback, resolution feedback, and covariance feedback - on various aspects of the performance of probability ...
    • The effects of feedback on judgmental interval predictions 

      Bolger, F.; Önkal-Atay, D. (Elsevier, 2004)
      The majority of studies of probability judgment have found that judgments tend to be overconfident and that the degree of overconfidence is greater the more difficult the task. Further, these effects have been resistant ...
    • Effects of feedback on probabilistic forecasts of stock prices 

      Önkal D.; Muradoğlu, G. (1995)
      This paper reports the results of an experiment in stock-price forecasting that investigated the effects of feedback on various dimensions of probability forecasting accuracy. Three types of feedback were used: (1) simple ...
    • Effects of ignorance and information on judgments and decisions 

      Ayton, P.; Önkal D.; McReynolds, L. (Society for Judgment and Decision Making, 2011)
      We compared Turkish and English students’ soccer forecasting for English soccer matches. Although the Turkish students knew very little about English soccer, they selected teams on the basis of familiarity with the team ...
    • Effects of task format on probabilistic forecasting of stock prices 

      Önkal D.; Muradoğlu, G. (Elsevier, 1996)
      This study aims to explore the differences in various dimensions of forecasting accuracy that may result from the task format used to elicit the probabilistic forecasts. In particular, we examine the effects of using ...
    • Effects of trend strength and direction on performance and consistency in judgmental exchange rate forecasting 

      Thomson, M. E.; Pollock, A. C.; Gönül, M. S.; Önkal D. (Elsevier, 2013)
      Using real financial data, this study examines the influence of trend direction and strength on judgmental exchange rate forecasting performance and consistency. Participants generated forecasts for each of 20 series. Half ...
    • Expertise, credibility of system forecasts and integration methods in judgmental demand forecasting 

      Alvarado-Valencia, J.; Barrero, L. H.; Önkal D.; Dennerlein, J. T. (Elsevier B.V., 2017)
      Expert knowledge elicitation lies at the core of judgmental forecasting—a domain that relies fully on the power of such knowledge and its integration into forecasting. Using experts in a demand forecasting framework, this ...
    • Judgmental adjustments of previously adjusted forecasts 

      Önkal D.; Gönül, M. S.; Lawrence, M. (Wiley-Blackwell Publishing, 2008)
      Forecasts are important components of information systems. They provide a means for knowledge sharing and thus have significant decision-making impact. In many organizations, it is quite common for forecast users to receive ...
    • Judgmental forecasting 

      Önkal-Atay, Dilek; Thomson, M. E.; Pollock, A. C. (Wiley, 2004)