https://scholar.harvard.edu/matthewjacob https://scholar.harvard.edu/matthewjacob/home https://scholar.harvard.edu/matthewjacob/publications https://scholar.harvard.edu/matthewjacob/publications/deleting-misconduct-expungement-brokercheck-records https://scholar.harvard.edu/files/matthewjacob/files/expungement.pdf https://scholar.harvard.edu/matthewjacob/publications/optimal-non-linear-taxation-and-design-education-policy https://scholar.harvard.edu/files/matthewjacob/files/optimal_tax.pdf https://scholar.harvard.edu/files/matthewjacob/files/matthew_jacob_cv.pdf