Search results for "Economic information"
showing 6 items of 6 documents
Correlation based hierarchical clustering in financial time series
2005
We review a correlation based clustering procedure applied to a portfolio of assets synchronously traded in a financial market. The portfolio considered consists of the set of 500 highly capitalized stocks traded at the New York Stock Exchange during the time period 1987-1998. We show that meaningful economic information can be extracted from correlation matrices.
Networks of equities in financial markets
2004
We review the recent approach of correlation based networks of financial equities. We investigate portfolio of stocks at different time horizons, financial indices and volatility time series and we show that meaningful economic information can be extracted from noise dressed correlation matrices. We show that the method can be used to falsify widespread market models by directly comparing the topological properties of networks of real and artificial markets.
Economic Sector Identification in a Set of Stocks Traded at the New York Stock Exchange: A Comparative Analysis
2006
We review some methods recently used in the literature to detect the existence of a certain degree of common behavior of stock returns belonging to the same economic sector. Specifically, we discuss methods based on random matrix theory and hierarchical clustering techniques. We apply these methods to a set of stocks traded at the New York Stock Exchange. The investigated time series are recorded at a daily time horizon. All the considered methods are able to detect economic information and the presence of clusters characterized by the economic sector of stocks. However, different methodologies provide different information about the considered set. Our comparative analysis suggests that th…
Miarkowanie kary umownej w ramach powództwa o jej zwrot – glosa do wyroku Sądu Okręgowego w Olsztynie z 5.12.2018 r., IX Ca 758/18
2023
Komentowane orzeczenie dotyczy możliwości miarkowania kary umownej po tym, jak została ona zapłacona przez dłużnika z zastrzeżeniem zwrotu. Główny problem w sprawie stanowiło to, czy powód może skutecznie wystąpić z odrębnym powództwem o zwrot części zapłaconej już pozwanemu kary. Istota postępowania sprowadzała się do określenia formy i momentu wystąpienia przez dłużnika z żądaniem miarkowania kary umownej. Sąd zgodził się z tezą, że do miarkowania może dojść na skutek powództwa wytoczonego przez dłużnika. Natomiast przyjął kontrowersyjne stanowisko, które zostało poddane w niniejszej glosie krytyce, że do miarkowania nie może dojść po tym, jak kara została zapłacona
Applications of statistical mechanics to finance
1999
Abstract We discuss some apparently “universal” aspects observed in the empirical analysis of stock price dynamics in financial markets. Specifically we consider (i) the empirical behavior of the return probability density function and (ii) the content of economic information in financial time series.
Fairness behavior in an economic crisis environment: a Romanian experimental perspective
2012
Abstract In the context of the current prolonged economic crisis, we were wondering if the typical behaviour of Romanians in terms of their ‘fairness’ has suffered any modification. This study is trying to identify the effect of psychological pressure created by the economic crisis on fairness using the Ultimatum Game. We aim to look at the question if this hypothetical phenomenon applies mostly to people who use economic information in their day-to-day life (e.g., economic science students) or if it also affects different populations (e.g., psychology students). Another aim is to understand if any difference is influenced mainly by vocational personalities as Holland hs described.