Philipp's principal research interest is international financial markets law and regulation and the close interaction with insolvency and general civil/commercial law, covering adjacent aspects of private international law. He has worked extensively on legal risk and inefficiencies of cross-jurisdictional financial transactions and cross-jurisdictional exercise of investor rights. Additionally, Philipp advises on legal aspects of the financial market infrastructure, covering institutions like central securities depositories, central counterparties and securities settlement systems. In the context of the recent financial crisis, he has focussed on risk management and risk mitigation through legal devices such as collateral, netting, clearing and finality and the resolution of financial institutions. Most recently, his work concentrates on financial innovation, Fintech, and blockchain/DLT related issues.