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The purpose of this paper is to present the results of an atomic force microscopy (AFM) based approach to local impedance spectroscopy (LIS) measurement performed on AA2024 and AA2024‐T3 aluminium alloys.

AFM‐LIS measurements were performed ex‐situ without the electrolyte environment, so in fact the electrical not electrochemical impedance was obtained.

Relative local impedance values recorded for AA2024 alloy during the researches carried out were maximally approximately three orders of magnitude higher than the ones obtained for age‐hardened AA2024‐T3 alloy. Moreover, in the case of AA2024‐T3 alloy, a region located in the interior of α crystals exhibited localized impedance one order of magnitude higher than that measured at its grain boundary when affected by intergranular corrosion.

The paper presents differences in localized impedance between grain and grain boundaries activity.

This study aims to examine the performance of environmental, social and governance (ESG) equity indices in Latin America (LA), evaluating their risk-return characteristics in comparison to conventional benchmark indices.

Using a quantitative empirical approach, the authors analyze ESG equity indices from Brazil, Mexico, Chile, Peru and Colombia, employing metrics such as Sharpe, Sortino and Omega ratios to measure risk-adjusted returns. Regression analysis is employed to assess the replicability of ESG indices by benchmark indices. Monte Carlo simulations are conducted to explore the potential increase in risk-adjusted returns when ESG equity indices are incorporated into portfolios.

The study addresses critical questions for investors: Can ESG indices outperform their benchmarks? Can these ESG indices be replicated by benchmark counterparts? Do ESG equity indices enhance portfolio diversification? The findings reveal that investing in ESG indices has the potential to enhance risk-adjusted returns and portfolio diversification.

While this study focuses on various LA economies, it’s important to note variations in currency and volatility.

For investors in LA, this study highlights the importance of considering ESG indices as part of their investment strategies. While not all ESG indices outperform conventional ones, some may improve diversification and risk-adjusted performance. Investors should carefully assess market-specific conditions and national factors when making investment decisions.

The primary contribution of this study is its focus on LA countries in the examination of diverse portfolios. The research provides valuable insights into the performance of ESG indices in this region compared to conventional benchmark indices. This approach addresses an important gap in the existing literature and offers a more comprehensive perspective on ESG investing and portfolio diversification.

Se examina el rendimiento de los índices-ESG en América Latina (AL), evaluando sus características de riesgo y retorno en comparación con los índices convencionales.

Utilizando un enfoque cuantitativo, analizamos los índices-ESG de Brasil, México, Chile, Perú y Colombia, empleando ratios de Sharpe, Sortino y Omega para medir los rendimientos ajustados al riesgo. Se utiliza análisis de regresión para evaluar la replicabilidad de los índices-ESG por parte de los índices de referencia. Se realizan simulaciones de Monte-Carlo para explorar el aumento en los rendimientos ajustados al riesgo cuando se incorporan los índices-ESG en las carteras.

El estudio aborda preguntas críticas: ¿Pueden los índices-ESG superar a sus índices de referencia? ¿Pueden estos índices-ESG ser replicados por sus contrapartes de referencia? ¿Mejoran los índices-ESG la diversificación de las carteras? Los hallazgos revelan que la inversión en índices-ESG tiene el potential de mejorar los rendimientos y la diversificación de las carteras de inversión.

Aunque este estudio se centra en diversas economías de AL, es importante tener en cuenta variaciones en moneda y volatilidad.

La principal contribución de este estudio radica en su enfoque en países de AL en el examen de carteras diversas; ofrece valiosos conocimientos sobre el rendimiento de los índices-ESG en esta región en comparación con los índices convencionales.

The Financial Stability Board (FSB) determined that entities classified as shadow banking are of a credit nature because they are capable of affecting the financial system through the entry and exit of capital. This study aims at measuring the impact of shadow banking in the systemic risk in Chile. A sample of 91 institutions (Run) belonging to the mutual funds was used, with a series showing a continuous behaviour between 2004 and 2018.

The measurement is carried out using the conditional value at risk (CoVaR) methodology, which analyses the behaviour of an institution in a regular state against the same institution in a state of stress.

The results obtained reflect that liquidity mismatches do not have a relevant effect on the systemic risk, while the 2008 crisis does contribute to its decline.

There are less number of literature studies that apply statistical models regarding shadow banking, at least at a quantitative level, so this research is a beginning for other studies, supporting future authors in their new research as a basis.

El Consejo de Estabilidad Financiera determinó que las entidades clasificadas como Shadow Banking son de carácter crediticio debido a que son capaces de afectar al sistema financiero mediante la entrada y salida de capitales. Este estudio tiene como objetivo medir el impacto del Shadow Banking en el Riesgo Sistémico de Chile. Para esto se utilizó una muestra de 91 instituciones (Run) pertenecientes a los Fondos Mutuos, con series que muestran un comportamiento continuo entre 2004 y 2018.

La medición se lleva a cabo mediante la metodología CoVaR, la cual analiza la conducta de una institución en estado normal versus la misma institución en estado de estrés.

Los resultados obtenidos reflejan que los desajustes de liquidez no tienen un efecto relevante en el Riesgo Sistémico, mientras que la crisis del 2008 si contribuye a la disminución de este.

Existe muy poca literatura que aplica modelos estadísticos respecto al Shadow Banking, al menos a nivel cuantitativo, por lo que esta investigación es un inicio para otros estudios, apoyando como base a futuros autores en sus nuevas investigaciones.

Under this heading are published regularly abstracts of all Reports and Memoranda of the Aeronautical Research Council, Reports and Technical Memoranda of the United States National Advisory Committee for Aeronautics and publications of other similar Research Bodies as issued.

Risk governance has an important influence on the hedging performances in option pricing and portfolio hedging in both discrete and dynamic case for both conventional and Islamic indexes. The paper aims to discuss these issues.

This paper explores option pricing and portfolio hedging in a discrete and dynamic case with transaction costs. Monte Carlo simulations are applied to both conventional and Islamic indexes in US and UK markets. Simulations show that conventional and Islamic assets do not exhibit the same price and portfolio hedging strategy governance.

The authors conclude that Islamic assets show different option price and hedging strategy compared to their conventional counterpart.

The research question of this paper aims at filling the gap in the empirical literature by exploring option price and hedging structure for both conventional and Islamic indexes in US and UK stock markets.

The purpose of this paper is to develop a model for studying the propensity towards indebtedness in Malaysia using behavioural factors.

A self-administered questionnaire was distributed among Malaysians who work in Klang Valley, Kuala Lumpur. The questionnaire contained several demographic variables and four behavioural factors: financial literacy, risk perception, materialism and emotions. A total of 201 completed questionnaires were received and the data were tested using structural equation modelling with partial least squares.

This study found that emotion and materialism are statistically significant for a propensity towards indebtedness, while financial literacy and risk perceptions are insignificant for a propensity towards indebtedness.

The results of this study would be useful in helping design better models for credit offerings and addressing credit problems in the long run.

The purpose of this paper is to uncover an institutional reason behind herding and the key to successful execution of the accumulation-lift-distribution (ALD) trading strategy.

The paper proposes the perception alignment hypothesis (PAH), which is based on a large number of empirical episodes. Extensive empirical and theoretical literature of 79 articles is reviewed. These are selected from previously unrelated fields of prosecuted cases in market manipulation, sell-side analysts’ recommendations and internet rumors. These studies are put into a unifying conceptual framework.

The proposed PAH can explain some herding episodes that were generated for the purpose of executing ALD.

The value of the approach is that while behavioral biases are hard to change, perception alignment can be more responsive to regulation.

This paper is the first to propose the PAH. It provides an explanation for the causality of herding that complements the traditional literature on the psychological weaknesses of investors. This paper opens a debate on whether the stock market is fully competitive because investors have behavioral biases and certain institutions take advantage of those biases.

The purpose of this paper is to explore the influence of several core behavioural propensities on financial risk tolerance (FRT). Additionally, this paper examines the moderating effect of ethnicity on the relationship between behavioural propensities and FRT.

A sample of 1,204 completed and usable questionnaires were collected from undergraduate students majoring in business, economics and finance and analysed them using SmartPLS 2.0 software.

The findings reveal that propensity for trust has the highest impact on FRT followed by propensity for regret and happiness in life, while propensity for social interaction is not significantly associated with FRT. Ethnicity significantly moderates the relationship between three behavioural propensities (propensity for regret, propensity for trust and happiness in life) and FRT.

This study contributes to the assessment of individuals’ FRT incorporating behavioural propensities, which in turn contributes to the field of behavioural finance.

This study aims to investigate the possibilities of cryptocurrencies as hedges and diversifiers in the Indian stock market before and during financial crisis due to the pandemic and the Russia–Ukraine war.

Researchers have used daily data on cryptocurrencies and Indian stock prices from March 10, 2015 to August 26, 2022. The researchers have used the dynamic conditional correlations (DCC)-GARCH model to determine the volatility spillover and dynamic correlation between stocks and digital currencies. Further, researchers have explored hedge ratio, portfolio weight and hedging effectiveness using the estimates of the DCC-GARCH model.

The findings indicate a negative conditional correlation between equities and cryptocurrencies before the crisis and a positive conditional correlation except for Tether during the crisis. Which implies that cryptocurrencies serve as a hedging asset in the stock market before a crisis but are not more than a diversifier during the crisis, except for Tether. Notably, Tether serves as a safe haven during times of crisis. Finally, the study suggests that Bitcoin, Ethereum, Binance Coin and Ripple are the most effective diversifiers for Indian stocks during the crisis.

This study makes several contributions to the existing literature. First, it compares the hedge and diversification roles of cryptocurrencies in the Indian stock market before and during crisis. Second, the study findings provide insights on risk hedging and can serve as a guide for investors. Third, it may help rational investors avoid underestimating risk while constructing portfolios, particularly in times of financial turmoil.

This study examines co-movements between global Islamic index and heterogeneous rated/maturity sukuk. It tests the impact of financial uncertainty on these movements.

Firstly, we conduct a bivariate wavelet analysis to assess the co-movements between stocks and sukuk indexes. Secondly, we use General dynamic factor model and stochastic volatility to construct financial uncertainty index from Islamic stock indexes. Finally, we run regression analysis to determine the impact of uncertainty on the obtained correlations.

Our results suggest the absence of flight to quality phenomenon since correlations are positive especially at a short investment horizon. There is evidence of contagion phenomena across assets. Financial uncertainty may be considered as a determinant of stock-sukuk co-movements. Our results show that a rise in financial uncertainty induces correlation to move in the opposite direction in the short term, (exception for correlation with AA-Rated sukuk). However, the sign of stock market uncertainty becomes positive in the long term, which leads sukuk and stocks to move in the same direction (exception for 1–3 Year and AA Rated sukuk).

Investors may combine sukuk with 1–3 Year maturity and AA Rated when considering long holding periods. Further, all sukuk categories provide diversification benefit in time high financial uncertainty expectation for AA Rated sukuk when considering short holding periods.

To the best of our best knowledge, our study is the first investigation of the impact of financial uncertainty on Stock-sukuk co-movements and provides recommendation considering sukuk with different characteristics.