“…In practice, interest expenses on housing loans are often deductible at a higher rate than the one at which investment income (for instance from life insurance or pension funds) is taxed, although the deductible amount is often limited. In addition, because interest relief is typically restricted to loans that are taken for a house purchase, it creates a bias towards housing, which is amplified by the widespread exemption of owner-occupied housing services from taxable income (Denk, 2012;Égert, 2013). This bias can encourage over-investment in housing compared with other forms of capital.…”