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This paper presents a methodology which blends sensitivity analysis and fuzzy arithmetic for managing uncertainty in project financing transactions. Specifically, we adopt the perspective of the equityholders and use the average Return On Equity (ROE) to measure shareholder value creation and,...
Persistent link: https://www.econbiz.de/10013403889
Stocks' returns are moved by many risk factors. Thematic stock indices try to represent these factors but are limited by the fact that risk factors are not directly observable. This paper shows a method to uncover hidden risk factors through text analysis. It applies the dynamic variant of the...
Persistent link: https://www.econbiz.de/10013405718
When merging firms across large databases in the absence of common identifiers, text algorithms can help. I propose a high-performance fuzzy firm name matching algorithm that uses existing computational methods and works even under hardware restrictions. The algorithm consists of four steps,...
Persistent link: https://www.econbiz.de/10014380748
policy within a large state-space LQ-tracking wavelet decomposition model. Our study builds a MATLAB program that simulates …
Persistent link: https://www.econbiz.de/10013017295
Six permutation test algorithms coded in SAS® are compared. The fastest (“OPDN”), which uses no modules beyond Base SAS®, achieves speed increases orders of magnitude faster than the relevant “built-in” SAS® procedures (over 215x faster than Proc SurveySelect, over 350x faster than...
Persistent link: https://www.econbiz.de/10013131181
Seven bootstrap algorithms coded in SAS® are compared. The fastest (“OPDY”), which uses no modules beyond Base SAS®, achieves speed increases almost two orders of magnitude faster (over 80x faster) than the relevant "built-in” SAS® procedure (Proc SurveySelect). It is even much faster...
Persistent link: https://www.econbiz.de/10013132785
We examine whether vocal markers of cognitive dissonance are useful for detecting financial misreporting. We use speech samples of CEOs during earnings conference calls and generate vocal dissonance markers using automated vocal emotion analysis software. We begin by assessing construct validity...
Persistent link: https://www.econbiz.de/10013134031
Uncertainty in regression can be efficiently and effectively communicated using the visual properties of statistical objects in a regression display. Altering the "visual weight" of lines and shapes to depict the quality of information represented clearly communicates statistical confidence,...
Persistent link: https://www.econbiz.de/10013081991
The rise of order-driven markets in recent years created considerable challenges for researchers, who have to cope with extremely large amounts of data produced daily by the markets. It is our goal to spare academic researchers the tedious task of technical pre-processing of the data and thus...
Persistent link: https://www.econbiz.de/10013117151
Galician Abstract: O impacto socio-económico do turismo está atraendo a atención dos estudios de políticas públicas. A actividade turística pode producir relevantes beneficios económicos, pero pode tamén producir impactos negativos nas comunidades locais, o seu patrimonio cultural así...
Persistent link: https://www.econbiz.de/10013218296