Nowak, Eric Pirovano, Matteo 2023 The central interest of my doctoral studies is to analyze market efficiency, with a particular emphasis on the role of retail traders and short sellers. My thesis consists of three chapters in the fields of asset pricing and corporate finance. Using unique datasets and empirical approaches I address several questions, including: “Can retail trader coordination lead to market-distorting events?”, “How prevalent are short squeezes?”, and “Can crowdfunding mitigate small firms’ capital constraints?”. application/pdf https://n2t.net/ark:/12658/srd1328159 https://susi.usi.ch/global/documents/328159 https://susi.usi.ch/documents/328159/files/2023ECO007.pdf eng info:eu-repo/semantics/altIdentifier/ark/12658/srd1328159 info:eu-repo/semantics/altIdentifier/urn/urn:nbn:ch:rero-006-121956 info:eu-repo/semantics/openAccess License undefined Retail investors Short squeeze Limits to arbitrage Market misconduct Social media platforms Crowdfunding Regulation CF Financial growth cycle info:eu-repo/classification/udc/33 Essays on retail investors, short selling, and market efficiency http://purl.org/coar/resource_type/c_db06