As a main principle, income is taxed when earned. This principle is broken in case of unrealized capital gains (recovered depreciations, unrecorded intangible assets etc.). Such incomes are taxed when realized or the ‘latent tax’ is passed on to the new owner (tax succession). In Denmark,...

Cash are socially less costly than payment cards for all payments below DKK 29, while Dankort, the national Danish debit card, are cheaper for all other point-of-sale payments. These results are derived from calculations that divide costs of payments into fixed, variable-transaction-dependent,...