Frank Brennan (economist)
Frank Brennan (15 December 1947 – 1 September 2015) was an Irish tax inspector and an author on tax-related subjects. Accomplishments. Throughout his lifetime, Brennan earned himself a reputation as being "the widely respected economist and tax consultant who designed the blueprint for tackling Ireland's black economy in the early 1990s." He did this through his well-researched paper that explained how to harness black money "to kick-start an otherwise stagnant economy." He also coauthored the Tax Commentary for many years.