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We introduce a new system of stochastic differential equations which models dependence of market beta and unsystematic risk upon size, measured by market capitalization. We fit our model using size deciles data from Kenneth French’s data library. This model is somewhat similar to generalized volatility-stabilized models. The novelty of our work is twofold. First, we take into account the difference between price and total returns (in other words, between market size and wealth processes). Second, we work with actual market data. We study the long-term properties of this system of equations, and reproduce observed linearity of the capital distribution curve. In the “Appendix”, we analyze size-based real-world index funds.

We study a mean-field version of rank-based models of equity markets such as the Atlas model introduced by Fernholz in the framework of stochastic portfolio theory. We obtain an asymptotic description of the market when the number of companies grows to infinity. Then, we discuss the long-term capital distribution. We recover the Pareto-like shape of capital distribution curves usually derived from empirical studies, and provide a new description of the phase transition phenomenon observed by Chatterjee and Pal. Finally, we address the performance of simple portfolio rules and highlight the influence of the volatility structure on the growth of portfolios.

This study investigates the effects of venture typology, race, ethnicity, and past venture experience on the social capital distribution of women entrepreneurs in entrepreneurial ecosystems. Social network data from two municipal ecosystems in Florida, USA (Gainesville and Jacksonville), suggest that network connectivity and the distribution of social capital are significantly different for men and women entrepreneurs. This difference is contingent on the venture type. Male entrepreneurs show higher comparative scores of bridging social capital in aggressive- and managed-growth venture networks, while women entrepreneurs surpass their male counter-parts’ bridging capital scores in lifestyle and survival venture networks. Lastly, experienced women entrepreneurs that self-identified as white showed a higher degree of network connectivity and bridging social capital in the entrepreneurial ecosystem than less experienced non-white female entrepreneurs. Implications for entrepreneurship practice and new research paths are discussed.

This article estimates the causal impact of dismissal costs on capital deepening and productivity, exploiting a reform that introduced unjust-dismissal costs in Italy for firms below 15 employees, leaving firing costs unchanged for larger firms. We show that the rise in firing costs induced an increase in the capital-labour ratio and a decline in total factor productivity in small firms relative to larger firms. Our results indicate that capital deepening was more pronounced at the low-end of the capital distribution – where the reform hit arguably harder – and among firms endowed with a larger amount of liquid resources. We also find that stricter Employment Protection Legislation (EPL) raised the share of high-tenure workers, which suggests a complementarity between firm-specific human capital and physical capital in moderate EPL environments.

We provide an optimal growth spatio-temporal setting with capital accumulation and diffusion across space to study the link between economic growth triggered by capital spatio-temporal dynamics and agglomeration across space. The technology is AK, K being broad capital. The social welfare function is Benthamite. In sharp contrast to the related literature, which considers homogeneous space, we derive optimal location outcomes for any given space distributions for technology and population. Both the transitional spatio-temporal dynamics and the asymptotic spatial distributions are computed in closed form. Concerning the latter, we find, among other results, that: (i) due to inequality aversion, the consumption per capital distribution is much flatter than the distribution of capital per capita; (ii) endogenous spillovers inherent in capital spatio-temporal dynamics occur as capital distribution is much less concentrated than the (pre-specified) technological distribution; (iii) the distance to the center (or to the core) is an essential determinant of the shapes of the asymptotic distributions, that is relative location matters.

The inconsistency of arguments regarding the value of diversification strategies means that there is a lack of a unified methodological approach and a method for evaluating the impact on efficiency and competitive ability of companies. Research shows that diversification was crucially important for oil and gas companies during the economic shocks of 1998, 2009, and 2015. Nowadays, oil and gas companies apply the strategy of green diversification to solve climate change problems and adapt to energy transition trends. The goals of 14 global oil and gas companies with regard to carbon neutrality were analyzed in this study. This research expands the theoretical studies of diversification processes and outcomes in the oil and gas industry and contributes to the discussion of the feasibility of companies implementing renewable energy projects. The factors that prompt oil and gas companies to adopt green diversification were formulated, and their key strategic priorities were determined depending on the volume of proven resources. The research suggests that global shocks in the international energy market and a reduction in the significance of oil and gas resources in the overall power balance stimulate companies to diversify their asset portfolios, but such strategy does not protect against negative impacts. In addition, important issues were identified for further analysis.

The study leverages the trade-off theory to assess the influence of capital structure on business growth following adopting IFRS. Employing a purposive sampling technique, 92 non-financial institutions listed on the Frankfurt Stock Exchange from 1994 to 2021 were selected for analysis. A two-step Generalized Method of Movements (GMM) was utilized to explore the impact of firms’ capital structure on their business growth under IFRS adoption. Results indicated a positive and statistically significant correlation between the debt-to-equity ratio and business growth (assets, sales, and profit). Moreover, the study revealed that the debt-to-capital and long-term debt-to-capital ratios had a negative effect on asset and profit growth but a positive impact on sales growth. Additionally, the debt-to-total-assets ratio demonstrated a negative influence on asset and sales growth but a positive effect on profit growth. Firms adopting IFRS had positive and significant impacts on sales, assets, and profit growth. Furthermore, the findings highlighted the adverse effects of the 2008 financial crisis and the COVID-19 pandemic on business growth. Firms listed on the Frankfurt Stock Exchange can strategically utilize these findings to optimize their capital structure decisions within the framework of IFRS adoption. By comprehending the nuanced relationship between capital structure and business growth, managers can tailor financing strategies to foster sustainable growth while managing financial risks effectively.

The proper allocation of corporate capital is critical to sustainable business development, and misallocation of resources can impede sustainable economic growth and competitive markets. This study investigates the relationship between market power and capital misallocation in Chinese A-share listed companies, with a novel focus on the mediating role of total factor productivity (TFP). Using a comprehensive dataset of 20,818 firm-year observations from 2009 to 2021, we employ linear regression analysis to elucidate the mechanisms through which market power influences capital allocation efficiency. The results reveal a significant positive correlation between market power and capital misallocation, with TFP partially mediating this relationship. Specifically, a one-unit increase in the market power index is associated with a 1.106 unit decrease in TFP, and a 0.028 unit increase in the capital misallocation, indicating potential threats to long-term sustainability. This effect is more pronounced in non-state-owned enterprises, firms located in eastern regions, and those without shareholdings in financial institutions. These results contribute to the literature on market structure and resource allocation by providing empirical evidence of the detrimental effects of market power on capital allocation efficiency, operating through the channel of reduced productivity. Our findings have important implications for policymakers and firm managers, suggesting the need for targeted antitrust measures, promotion of market competition, and strategies to enhance TFP. This research advances our understanding of the complex interplay between market power, productivity, and capital allocation in emerging economies, offering valuable insights for addressing market failures, improving allocative efficiency and actively promoting sustainable business and sustainable socio-economic development in the Chinese context.

This paper investigates the operation of the academic market in Italy, mapping current scholars’ location choices. I build a new dataset of current professors, associating each scholar with a composite indicator of their quality. The analysis includes the quality of the university and the features of the city where the institution is located. I estimate the strength of different factors: gravity (distance), agglomeration (scholars are attracted to higher quality universities), selection (better scholars travel longer distances), and sorting (the better the scholar, the more the quality of universities is weighted). I find that all of these factors have an effect, and do not vary according to scholars’ gender. I find a greater expected utility for scholars in choosing private universities over public ones, through a consistent nesting procedure. Comparing these forces to historical trends in Italian academia, the sorting effect delineates a new momentum for the current academic market in Italy.

In Brazil's complex tax landscape, this study examines the link between tax aggressiveness and auditor switches among B3-listed companies. Analyzing data from 2012 to 2022, we find heightened tax aggressiveness reduces the propensity for voluntary auditor changes. Yet, during crises or under Big 4 auditing, this inclination shifts. These findings spotlight Brazil's unique corporate dynamics, differing from global trends, and emphasize the importance of understanding tax strategies and auditor behaviors within Brazil's unique market context.