How do human beings decide when to be selfish or selfless? In this study, we gave
testosterone to 25 men to establish its impact on prosocial behaviors in a double-blind within-…

In recent years there have been a number of highly publicized episodes of large international
capital flow surges and dramatic reversals. This paper addresses several issues …

… Dr Levan Efremidze is an Assistant Professor of Economics at the Economics Department of
… Levan Efremidze is the corresponding author and can be contacted at: Levan.Efremidze@…

… We tested several values of L between 21 days (1 month) to 147 days (7 months). In this …
for L ​= ​126 days (6 months). The results were also satisfactory for several other values of L …

Purpose This paper aims to investigate the relationship between capital flow surges, reversals
and sudden stops. Design/methodology/approach Emphasizing the importance of looking …

Over the last three decades, many developing countries have experienced severe currency
crises. This paper presents a study of how the importance of twin deficits (budget and current …

The authors tested a leading theory of bubble formation, insufficient learning, in a laboratory
asset market using a drug, Naltrexone, which inhibits reinforcement learning. We found that …

We study style rotation fea-sibility utilizing two new indicators. These indicators are sample
entropy (SaEn) and approximate entropy (ApEn) calculated from the CBOE Volatility Index (…

… this helps explain why only about half of capital flow surges end in sudden stops (Efremidze …
literature on experimental asset bubbles also documents factors behind crashes (Efremidze …

We examine the effectiveness of entropy analytics for stock market timing. The objective
behind the study is to develop and facilitate market timing procedure by introducing a relatively …