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This paper aims to empirically investigate the extent to which interdependence in markets may be driven by COVID-19 effects.

The current global COVID-19 pandemic is adversely affecting the oil market (West Texas Intermediate) and crypto-assets markets.

The authors find that the dependence structure changes significantly after the global pandemic, providing valuable information on how the COVID-19 crisis affects interdependencies. The results also prove that the performance of digital gold seems to be better compared to stablecoin.

The authors fit copulas to pairs of before and after returns, analyze the observed changes in the dependence structure and discuss asymmetries on propagation of crisis. The authors also use the findings to construct portfolios possessing desirable expected behavior.

This paper builds on the “Law and Finance” theory and aims to examine the effect of the legal and institutional environment on the governance–performance relationship in the context of non-US firms. More precisely, it examines whether and how the country’s legal system and the level of investor protection interact with the firm-level corporate governance and affect firm performance.

The authors used the “G-Index” governance score developed by the Governance Metrics International rating for a sample of 12,728 firm-year observations from 23 countries over the 2009–2016 period.

The results show that the interaction between the country-level institutions and corporate governance system significantly affect the firm performance. In particular, the findings indicate that firms operating in common law countries tend to exhibit a positive valuation effect and higher performance than firms with a comparable corporate governance level operating in civil law countries. More precisely, the authors find that in common law countries, higher investor protection with enhanced corporate governance is associated with better firm performance. However, firms operating in civil law countries with weaker investor protection and a comparable corporate governance level tend to experience a negative valuation effect.

The findings suggest that the institutional and legal environment is crucial and important in determining the value-maximizing level of good governance practices. Managers and regulators should carefully analyze the cost of these initiatives and should coordinate it with the needs of the country’s legal system. The challenge for the company will be how to adjust its corporate governance strategy according to the needs and demands of the country’s legal system in which the company operates to improve its performance. The regulators should ensure a fit between the specifics of the national legal and institutional environment and corporate governance standards and practices.

Using vector autoregressive modelling (VAR) and Granger causality tests, this paper attempts to empirically investigate the dynamic relationship between return and volume of transactions of two main cryptocurrencies: Bitcoin and Ethereum.

Based on a generalized autoregressive conditional heteroskedasticity (GARCH) model with a transaction volume parameter in the conditional volatility equation.

The results provide empirical evidence of a positive contemporaneous relationship between the variation in transaction volume and the daily return of Bitcoin and Ethereum. The results also show that the conditional volatility of the returns is affected by the past volatility, which implies weak-form inefficiency for both Bitcoin and Ethereum markets. The results of the VAR model, testing Granger causality, indicate that the volume of transactions Granger-Causes Bitcoin and Ethereum returns. Furthermore, the findings show a Granger causal relation from returns to volume.

This result suggests that cryptocurrency returns can predict transaction volumes and vice versa.

The purpose of this paper is to study the ownership‐liquidity relation in the context of the Tunisian Stock Exchange.

In particular, the paper examines two empirical relationships: the relationship between ownership concentration and stock liquidity and the relationship between the separation of ownership from control and market liquidity.

The empirical findings verify that the structure of ownership remains concentrated in the majority of the Tunisian firms. It is found that stock liquidity decreases significantly with concentrated ownership. Different devices are used to gain control and hence a significant separation of ownership from control affects liquidity in different ways. The results indicate that pyramidal structures have a significant negative impact on liquidity for all controlled firms. However, for family firms, non‐voting shares increase liquidity for minority shareholders by reducing the probability of informed trading.

Overall, this study reports that non‐voting shares may be a liquidity enhancing device for family firms.