In this paper, we compare the predictions on the market liquidity in crypto and fiat currencies between two traditional time series methods, the autoregressive moving average (ARMA) and the generalized autoregressive conditional heteroskedasticity (GARCH), and the machine learning algorithm called the k-nearest neighbor (KNN) approach. We measure market liquidity as the log rates of bid-ask spreads in a sample of three cryptocurrencies (Bitcoin, Ethereum, and Ripple) and 16 major fiat currencies from 9 February 2018 to 8 February 2019. We find that the KNN approach is better suited for capturing the market liquidity in a cryptocurrency in the short-term than the ARMA and GARCH models maybe due to the complexity of the microstructure of the market. Considering traditional time series models, we find that ARMA models perform well when estimating the liquidity of fiat currencies in developed markets, whereas GARCH models do the same for fiat currencies in emerging markets. Nevertheless, our results show that the KNN approach can better predict the log rates of the bid-ask spreads of crypto and fiat currencies than ARMA and GARCH models.

ResumenEl objetivo de este trabajo es analizar si los cambios en las normativas contables mejoran la relevancia valorativa de la información financiera en empresas cotizadas en México. La investigación se realizó para el periodo de 2000 a 2013 utilizando una muestra de 141 empresas que reportan a la bolsa mexicana de valores utilizando la metodología de datos panel. Nuestros hallazgos muestran que los cambios de normativa locales (principios contables generalmente aceptados) a normativas homologadas internacionalmente (normas de información financiera y normas internacionales de información financiera) aumentan la relevancia valorativa y, por consiguiente, la calidad de la información. Este estudio muestra que la información contable elaborada mediante las normas internacionales de información financiera es más confiable para los inversionistas extranjeros y nacionales.AbstractThe purpose of this paper is to examine whether changes in accounting standards improve value relevance of financial information on listed companies in Mexico. The research was conducted for the period 2000-2013 using a sample of 141 companies that report to the Mexican stock exchange using the methodology of panel data. Our findings show that changes in local regulations (generally accepted accounting principles) to internationally approved standards (financial reporting standards and international financial reporting standards) increase the value relevance and therefore the quality of information. The study shows that the accounting information with international financial reporting standards is more trustworthy for foreign and national investors

Este estudio tiene como objetivo sistematizar el conocimiento sobre responsabilidad social empresarial y el desempeño financiero. La metodología inició por la búsqueda de información en la plataforma Scopus en el periodo 2015-2023. Para el análisis, se utilizó la técnica de análisis bibliométrico mediante el software RSudio. Los resultados encontrados fueron que, la producción científica en este ámbito se duplicó en el período de estudio, con contribuciones especialmente de países como China, EE.UU., España e India, así mismo, en cuanto a la revista especializada con mayor citación se estableció a Journal of Business Ethics con 5,871 citas. Por otra parte, utilizando la técnica de coupling se determinaron 5 clusters: responsabilidad social empresarial, manejo medioambiental, cadena de suministros y finanzas; y como autores prominentes se ubicó a Orlitzky, Mcwilliams, Freeman; Carroll, Sen y Luo. En conclusión, se señala que existe una evolución en la temática a partir del marco conceptual propuesto por los autores Bowen y Carroll; y se destaca la relación existente entre la Responsabilidad Social Empresarial y el Desempeño Financiero.

Climate change, the accelerated industrialization of emerging countries, as well as the growing demand for transparency from stakeholders, are all factors that influence the environmental performance of companies. Thus, eco-efficient behavior can improve financial performance by increasing wealth generation and decreasing the volatility of listed financial assets. There is a lot of previous literature showing diverse results of the effect of eco-efficiency on corporate profitability, but this is not the case when we refer to risk. This study analyzes the relationship between eco-efficient behavior and the share price volatility of companies traded in emerging markets. For this purpose, a sample of 346 companies listed in 24 countries was studied for the period between 2010 and 2017. The results show a positive effect. Thus, the recommendation is that a clear commitment to eco-efficient investment can improve the environmental impact of companies, from the private, public, and institutional spheres.