Rafael La Porta

In the late 1990s, La Porta co-authored a series of influential papers with Florencio López-de-Silanes, Andrei Shleifer, and Robert Vishny showing that countries' legal traditions significantly affect investor protection and financial development. Their 1998 paper 'Law and Finance' documented that common law countries generally provide stronger shareholder and creditor protections than civil law countries.

The legal origins theory posits that whether a country's legal system derives from English common law, French civil law, German civil law, or Scandinavian law has persistent effects on regulation, investor protection, and financial market development. The research showed that common law countries tend to have stronger investor protections and more developed equity markets.

La Porta is a professor at the Tuck School of Business at Dartmouth College. His research at the intersection of corporate finance and law and economics has made him one of the most cited scholars in financial economics.

LLSV refers to the research collaboration between Rafael La Porta, Florencio López-de-Silanes, Andrei Shleifer, and Robert Vishny, whose joint papers on law, finance, and governance in the late 1990s became some of the most cited works in all of economics. Their research established the empirical foundation for studying how legal institutions shape economic outcomes.