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Most online feedback mechanisms rely on voluntary reporting of privately observed outcomes. This introduces the potential for reporting bias, a situation where traders exhibit different propensities to report different outcome types to the system. Unless properly accounted for, reporting bias...
Persistent link: https://www.econbiz.de/10009214875
In this report a support system for predicting end prices on eBay is proposed. The end price predictions are based on the item descriptions found in the item listings of eBay, and on some numerical item features. The system uses text mining and boosting algorithms from the field of machine...
Persistent link: https://www.econbiz.de/10010837746
Electronic auctions have rapidly increased in popularity, but the consequences of switching to an electronic auction are unclear. In part this is because multiple changes occur at the same time so one can only observe the combined effect of these changes and not the effect of each separate...
Persistent link: https://www.econbiz.de/10010730962
Electronic auctions have rapidly increased in popularity, but the consequences of switching to an electronic auction are unclear. In part this is because multiple changes occur at the same time so one can only observe the combined effect of these changes and not the effect of each separate...
Persistent link: https://www.econbiz.de/10005505043
In this report a support system for predicting end prices on eBay is proposed. The end price predictions are based on the item descriptions found in the item listings of eBay, and on some numerical item features. The system uses text mining and boosting algorithms from the field of machine...
Persistent link: https://www.econbiz.de/10005450845
The article deals with the factors which infl uence efficiency of public procurement in the competitive contracting conducted through e-auctions in 15 Slovak cities. Data cover building and IT contracts awarded in the years 2007-2009. Together 186 observations were used for the analysis. The...
Persistent link: https://www.econbiz.de/10011195565
This paper empirically analyzes whether the character-based approach, which is based on the personality structure and the human capital of business founders, allows prediction of entrepreneurial success. A unique data set is used consisting of 414 previously unemployed persons whose personal...
Persistent link: https://www.econbiz.de/10005247688
This paper empirically analyses whether the character-based approach which is based on the personality and on the human capital of business founders, al- lows prediction of entrepreneurial success. A unique data set is used consisting of 414 previously unemployed persons whose personal...
Persistent link: https://www.econbiz.de/10005379420
This paper empirically analyzes whether the character-based approach, which is based on the personality structure and the human capital of business founders, allows prediction of entrepreneurial success. A unique data set is used consisting of 414 previously unemployed persons whose personal...
Persistent link: https://www.econbiz.de/10005068664
This paper empirically analyzes whether the character-based approach, which is based on the personality structure and the human capital of business founders, allows prediction of entrepreneurial success. A unique data set is used consisting of 414 previously unemployed persons whose personal...
Persistent link: https://www.econbiz.de/10008683729