This dissertation has three chapters. Each chapter of my thesis studies different topics within the field of household finance. My research focuses on household finance topics that are both academically interesting and relevant to inform public policymaking on the topic of consumer financial protection regulation. Chapter one and chapter two both study the topic of the economics of credit information. Chapter one is my Job Market Paper ``Unraveling Information Sharing In Consumer Credit Market''. Chapter two is my Curriculum Paper ``Disaster Flags: Credit Reporting Relief from Natural Disasters''. Chapter three studies the topic of behavioral household finance. Chapter three is ``The Semblance of Success in Nudging Consumers to Pay Down Credit Card Debt''.