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相关论文: Exploring how innovation strategies at time of cri…

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This paper analyzes the connection between innovation activities of companies -- implemented before a financial crisis -- and their performance -- measured after such a time of crisis. Pertinent data about companies listed in the STAR…

统计金融 · 定量金融 2020-12-29 Marcel Ausloos , Francesca Bartolacci , Nicola G. Castellano , Roy Cerqueti

This paper shows how data science can contribute to improving empirical research in economics by leveraging on large datasets and extracting information otherwise unsuitable for a traditional econometric approach. As a test-bed for our…

综合经济学 · 经济学 2019-11-05 Marco Guerzoni , Consuelo R. Nava , Massimiliano Nuccio

Any research on strategies for reaching business excellence aims at revealing the appropriate course of actions any executive should consider. Thus, discussions take place on how effective a performance measurement system can be estimated,…

综合金融 · 定量金融 2018-08-01 Marcel Ausloos , Roy Cerqueti , Francesca Bartolacci , Nicola G. Castellano

This paper analyses how firms' skill development strategies affect their propensity to introduce innovation. We develop an adjustment-cost framework that links human capital theory and institutionalist and evolutionary approaches,…

综合经济学 · 经济学 2026-03-06 Davide Antonioli , Elisa Chioatto , Giovanni Guidetti , Riccardo Leoncini , Mariele Macaluso

The work applies the funnel plot methodology to measure and visualize uncertainty in the research performance of Italian universities in the science disciplines. The performance assessment is carried out at both discipline and overall…

数字图书馆 · 计算机科学 2018-10-31 Giovanni Abramo , Ciriaco Andrea D'Angelo , Leonardo Grilli

University evaluation is a topic of increasing concern in Italy as well as in other countries. In empirical analysis, university activities and performances are generally measured by means of indicator variables, summarizing the available…

应用统计 · 统计学 2014-04-25 Valentina Raponi , Francesca Martella , Antonello Maruotti

This study explores the relationship between R&D intensity, as a measure of innovation, and financial performance among S&P 500 companies over 100 quarters from 1998 to 2023, including multiple crisis periods. It challenges the conventional…

综合经济学 · 经济学 2024-03-20 Panteleimon Kruglov , Charles Shaw

Although the cluster theory literature is bountiful in economics and regional science, there is still a lack of understanding of how the geographical scales of analysis (neighbourhood, city, region) relate to one another and impact the…

物理与社会 · 物理学 2019-05-14 Clémentine Cottineau , Elsa Arcaute

This study examines insurance companies' financial performance and reporting trends within the medical sector using advanced clustering techniques to identify distinct patterns. Four clusters were identified by analyzing financial ratios…

计算金融 · 定量金融 2025-03-20 Evans Kiptoo Korir , Zsolt Vizi

We compare 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…

无序系统与神经网络 · 物理学 2008-12-02 C. Coronnello , M. Tumminello , F. Lillo , S. Miccichè , R. N. Mantegna

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…

物理与社会 · 物理学 2021-08-25 C. Coronnello , M. Tumminello , F. Lillo , S. Micciche` , R. N. Mantegna

Many financial and economic variables, including financial returns, exhibit nonlinear dependence, heterogeneity and heavy-tailedness. These properties may make problematic the analysis of (non-)efficiency and volatility clustering in…

计量经济学 · 经济学 2023-12-01 Rustam Ibragimov , Rasmus Pedersen , Anton Skrobotov

A new branch based on Markov processes is developing in the recent literature of financial time series modeling. In this paper, an Indexed Markov Chain has been used to model high frequency price returns of quoted firms. The peculiarity of…

统计金融 · 定量金融 2018-02-06 Guglielmo D'Amico , Ada Lika , Filippo Petroni

Previous research explored various conditions of financial markets based on the similarity of correlation structures and classified as market states. We introduce modifications to previous selection criteria for these market states, mainly…

Research performance values are not certain. Performance indexes should therefore be accompanied by uncertainty measures, to establish whether the performance of a unit is truly outstanding and not the result of random fluctuations. In this…

数字图书馆 · 计算机科学 2018-10-31 Giovanni Abramo , Ciriaco Andrea D'Angelo , Leonardo Grilli

This paper investigates the degree of efficiency for the Moscow Stock Exchange. A market is called efficient if prices of its assets fully reflect all available information. We show that the degree of market efficiency is significantly low…

统计金融 · 定量金融 2022-08-26 Andrey Shternshis , Piero Mazzarisi , Stefano Marmi

Return on Investment (ROI) is one of the most popular performance measurement and evaluation metrics. ROI analysis (when applied correctly) is a powerful tool in comparing solutions and making informed decisions on the acquisitions of…

计算工程、金融与科学 · 计算机科学 2015-12-25 Alexei Botchkarev

The assessment of corporate sustainability performance is extremely relevant in facilitating the transition to a green and low-carbon intensity economy. However, companies located in different areas may be subject to different…

应用统计 · 统计学 2026-04-30 Caterina Morelli , Simone Boccaletti , Paolo Maranzano , Philipp Otto

We consider the problem of the statistical uncertainty of the correlation matrix in the optimization of a financial portfolio. We show that the use of clustering algorithms can improve the reliability of the portfolio in terms of the ratio…

物理与社会 · 物理学 2008-12-02 Vincenzo Tola , Fabrizio Lillo , Mauro Gallegati , Rosario N. Mantegna

Research policies in the more developed nations are ever more oriented towards the introduction of productivity incentives and competition mechanisms intended to increase efficiency in research institutions. Assessments of the effects of…

数字图书馆 · 计算机科学 2018-11-06 Giovanni Abramo , Ciriaco Andrea D'Angelo , Flavia Di Costa
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