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Knowledge spillovers occur when a firm researches a new technology and that technology is adapted or adopted by another firm, resulting in a social value of the technology that is larger than the initially predicted private value. As a…

最优化与控制 · 数学 2021-01-14 Matt Barker , Pierre Degond , Ralf Martin , Mirabelle Muûls

One dimensional stylized model taking into account spatial activity of firms with uniformly distributed customers is proposed. The spatial selling area of each firm is defined by a short interval cut out from selling space (large interval).…

综合金融 · 定量金融 2008-12-02 Zoltan Kuscsik , Denis Horvath

We study the correlation structure of firm growth rates. We show that most firms are correlated because of their exposure to a common factor but that firms linked through the supply chain exhibit a stronger correlation on average than firms…

统计金融 · 定量金融 2023-07-04 Luca Mungo , José Moran

This study investigates the causal relationship between patent grants and firms' dynamics in the Information and Communication Technology (ICT) industry, as the latter is a peculiar sector of modern economies, often under the lens of…

综合经济学 · 经济学 2024-07-23 Dimitrios Exadaktylos , Mahdi Ghodsi , Armando Rungi

Predicting high-growth firms has attracted increasing interest from the technological forecasting and machine learning communities. Most existing studies primarily utilize financial data for these predictions. However, research suggests…

物理与社会 · 物理学 2024-08-20 Yiwei Huang , Shuqi Xu , Linyuan Lü , Andrea Zaccaria , Manuel Sebastian Mariani

The paper presents an analysis performed over the worldwide top 150 firms in the pharmaceutical industry. It begins with a test of the Gibrat's Law of Proportionate Effect finding, in line with previous literature, a violation concerning…

凝聚态物理 · 物理学 2007-05-23 Giulio Bottazzi

We develop a probabilistic consumer choice framework based on information asymmetry between consumers and firms. This framework makes it possible to study market competition of several firms by both quality and price of their products. We…

交易与市场微观结构 · 定量金融 2014-03-26 Hao Liao , Rui Xiao , Duanbing Chen , Matus Medo , Yi-Cheng Zhang

Most decision theories, including expected utility theory, rank dependent utility theory and cumulative prospect theory, assume that investors are only interested in the distribution of returns and not in the states of the economy in which…

投资组合管理 · 定量金融 2014-07-03 Carole Bernard , Franck Moraux , Ludger Rueschendorf , Steven Vanduffel

Industries can enter one country first, and then enter its neighbors' markets. Firms in the industry can expand trade network through the export behavior of other firms in the industry. If a firm is dependent on a few foreign markets, the…

综合经济学 · 经济学 2020-12-15 Xuejian Wang

Recent empirical evidence shows that investments in ICT disproportionately improve the performance of larger firms versus smaller ones. However, ICT may not be all alike, as they differ in their impact on firms' organisational structure. We…

综合经济学 · 经济学 2026-05-13 Bernardo Caldarola , Luca Fontanelli

Fund models are statistical descriptions of markets where all asset returns are spanned by the returns of a lower-dimensional collection of funds, modulo orthogonal noise. Equivalently, they may be characterised as models where the global…

投资组合管理 · 定量金融 2022-08-05 Constantinos Kardaras , Hyeng Keun Koo , Johannes Ruf

The mutual fund industry manages about a quarter of the assets in the U.S. stock market and thus plays an important role in the U.S. economy. The question of how much control is concentrated in the hands of the largest players is best…

综合金融 · 定量金融 2010-05-28 Yonathan Schwarzkopf , J. Doyne Farmer

A cluster theory based mathematical model was developed and used to simulate the dynamics of a system composed of a large number of interacting agents-clusters with different size. The case of a system formed by a constant total number of…

物理与社会 · 物理学 2007-05-23 Vitalie Eremeev , Ion Rasca , Florentin Paladi

The purpose of this paper is to focus on similarity and/or heterogeneity of taxonomies of innovation present in the economic fields to show as the economic literature uses different names to indicate the same type of technical change and…

经济学 · 定量金融 2017-05-26 Mario Coccia

Consumers in many markets are uncertain about firms' qualities and costs, so buy based on both the price and the quality inferred from it. Optimal pricing depends on consumer heterogeneity only when firms with higher quality have higher…

理论经济学 · 经济学 2019-04-12 Sander Heinsalu

The continuous increase of data generated provides enormous possibilities of both public and private companies. The management of this mass of data or big data will play a crucial role in the society of the future, as it finds applications…

计算机与社会 · 计算机科学 2015-01-15 Fatima El Jamiy , Abderrahmane Daif , Mohamed Azouazi , Abdelaziz Marzak

Understanding and potentially predicting or even controlling urban labour markets represents a great challenge for workers and policy makers alike. Cities are effective engines of economic growth and prosperity and incubate complex dynamics…

物理与社会 · 物理学 2022-02-28 Xiangnan Feng , Alex Rutherford

A rich theoretical and empirical literature investigated the link between export diversification and firm performance. Prior theoretical works hinted at the key role of capability accumulation in shaping production activities and…

综合经济学 · 经济学 2025-07-30 Valerio De Stefano , Maddalena Mula , Manuel Sebastian Mariani , Andrea Zaccaria

A significant number of the non-financial firms listed at the Nairobi Securities Exchange have been experiencing declining financial performance and financial growth, which deter investors from investing in such firms. Hence, the study…

综合金融 · 定量金融 2023-03-21 David Haritone Shikumo , Oluoch Oluoch , Joshua Matanda Wepukhulu

Firms with different ownership structures could be argued to have different levels of efficiency.Highly concentrated firms are expected to be more efficient as this type of ownership structure may alleviate the conflict of interest between…

综合金融 · 定量金融 2020-01-17 Sallahuddin Hassan , Zalila Othman , Mukaramah Harun