We build a parsimonious agent-based model under the adaptive market hypothesis (AMH), which can explain the formation of equilibrium prices and market efficiency dynamics. Our model combines heterogeneous interacting agents, switching behavior, and investor feedback on past realized returns,...

Momentum, size, and low volatility in emerging markets regularly exhibit increased correlations across factors and markets in periods of negative returns. I provide a framework to distinguish a unique source of risk from a set of factors in the stage of portfolio formation. The framework is...

Although many papers have examined the Saudi stock market, to date none have explored the influence of religiosity on the behavior of stock prices, taking into account the dominance of individual investors. These characteristics distinguish the Saudi stock market from other mature and immature...

The study examines the spillover between Twitter Uncertainty Indexes (TUI) and 10 US sectors. Our methodology is twofold: a time-varying parameter vector autoregression (TVP-VAR) to explore the dynamic connectedness among sectoral returns and a regression, mainly ordinary least squares (OLS) and...

This paper explores the relationship between global wealth and happiness. We employ a bivariate generalized autoregressive conditional heteroskedasticity framework for global wealth and happiness represented, respectively, by FTSE All-World and Twitter's Daily Happiness Sentiment indexes from...

Using data for about 50,000 actual household investment accounts, we document that financial advice reduced investors’ tendency to leave the stock market during the market crash of 2008 and had a positive correlation with their decisions to return to the market. In addition, we provide a...

Of many psychological biases, overconfidence has been described as one of the most powerful. Few studies have focused on collective overconfidence in team decision-making by boards of directors since boards are typically "black boxes". Based on the shared cognition and trickle-down effect, we...

Because of the recent surge in the number of unicorns and their role in spurring entrepreneurship and social impacts, venture capitalists, entrepreneurs, and regulators are concerned about how startup firms are valued. This is due to a lack of financial and historical information about startups...

The study examines the intention of stock investors to adopt robo-advisers (also known as automated investing services) in financial investment decisions. Using an adapted questionnaire, we analyze data from 637 useable surveys. The study uses variance-based partial least squares structural...

In this study, we analyzed 40 commercial bank annual reports from 2014 to 2021 to clarify the influence of tangible and intangible asset securitization on bank stock price bubbles, based on the banks’ preference for issuing asset securitization. The empirical findings show that tangible asset...