This paper examines whether investor mood, driven by World Health Organization (WHO) alerts and media news on globally dangerous diseases, is priced in pharmaceutical companies' stocks in the United States. We concentrate on irrational investors who buy and sell pharmaceutical companies' stocks...

Governments and firms often use committees of experts to help them make complexdecisions, but conflicts of interest could bias experts' recommendations. We focus on whetherfinancial ties to drug companies bias FDA drug advisory committee (AC) members' voting ondrug approval recommendations. We...

Current business models have struggled to support early-stage drug development. In this paper, we study an alternative financing model, the mega-fund structure, to fund drug discovery. We extend the framework proposed in previous studies to account for correlation between phase transitions in...

The Baker and Wurgler (2006) sentiment index purports to measure irrational investor sentiment, while the University of Michigan Consumer Sentiment Index is designed to largely reflect fundamentals. Removing this fundamental component from the Baker and Wurgler index creates an index of investor...

Asymmetric information between the issuer to potential investors believed by some academics in finance as one of the main causes of the phenomenon of underpricing at the time of the initial public offering (IPO). On science and technology-based company main problem lies in how to conduct...

This paper analyzes stocks' price behavior after IPO events in the pharmaceutical sector and explores the role of social media in determining this behavior. The results indicate positive and significant cumulative average abnormal returns (CAAR) of 3.70% in the first 20 days following an IPO...

We investigate return patterns of lottery-type-stocks around FDA announcements regarding New-Drug-Applications (NDAs), Biological-Licensing-Applications (BLAs), and New-Molecule-Entities (NMEs). Focusing on post-event returns, we document negative abnormal returns (‘bio-run-down’) for the...

The Covid-19 pandemic tragically emphasized severe failures of health systems. In particular, the saturation of hospital infrastructures and the lack of medical devices is crucial for respiratory ventilators. The medical and pharmaceutical sectors had to find urgently new ways to innovate...

Sentiment indices based on investor sentiment surveys attempt to measure the stock market sentiment. The literature on these indices focusses mainly on whether investor sentiment influences the financial markets or not. But the term “sentiment” has never been defined in the literature....

News carry information of market moves. The gargantuan plethora of opinions, facts and tweets on financial business offers the opportunity to test and analyze the influence of such text sources on future directions of stocks. It also creates though the necessity to distill via statistical...