This study seeks to provide guidelines on policy and economic aspects in relation to assignment and use of the radio-frequency spectrum so as to place NRAs, decision-makers and telecommunication/ICT service operators in a position to make efficient and optimal use of the spectrum, endeavouring to extract maximum benefit from the spectrum in the short and long term while maintaining the necessary balance with other key factors (e.g. coverage obligations, secondary market, etc.). It also seeks to provide an economic assessment of the impact that the conditions and price in a frequency auction exert on the provision of services.