Jasman Tuyon

TL;DR: In this paper, the rationality of investors, stock prices, and stock market efficiency behavior in the theoretical lenses of behavioural finance paradigm is investigated. But the analysis is guided by multidisciplinary behavioural-related theories.

TL;DR: In this article, the authors review the theory and empirical evidence of institutional investor behavioral biases in the lenses of behavioral finance paradigm and survey the research specifically focusing on behavioral biases among institutional investors in investment management activities worldwide.

TL;DR: In this paper, an alternative theoretical perspective and modelling of local investor sentiment proxies in Malaysian stock market is proposed. But the validity of the theory and model is then falsified with empirical analysis by examining the long and short-run as well as stability relationships of the sentiment proxies on the aggregate stock market index returns using suitable econometric methods.

TL;DR: In this article, the authors explored the relevance of bounded rationality to the practice of institutional investors in Malaysia and found that institutional investors too, being normal human beings, are expected to behave in a boundedly rational manner as postulated in bounded rational theory.

TL;DR: In this article, an alternative theoretical framework to explain investors' irrational behaviors in finance theories (mainly asset pricing) based on psychoanalysis approach is proposed, which is facilitated by interdisciplinary theories, namely, bounded rationality theory which differentiates intuition and reasoning, prospect theory which explains framing and valuation and theory of mind which divides behavioural risks into cognitive heuristics and affective biases.