Because a patent, under most countries' legal regimes, grants its owner an exclusive right to exclude others from making, using, selling, or importing the invention, a standard-setting organization generally must obtain permission from the patent holder to include a patented technology in its standard. So, it will often request that a patent holder clarify its willingness to offer to license its standard-essential patents on FRAND terms. If the patent holder refuses upon request to license a patent that has become essential to a standard, then the standard-setting organization must exclude that technology. When viewed in this light, the FRAND commitment serves to harmonize the private interests of patent holders and the public interests of standard-setting organizations. Many scholars have written about these topics, as well as a variety of other legal and economic issues concerning licensing on F/RAND terms.