Even the brief answers some of those questions - they broke down responses by various types of industries and by size, looked specifically at “mask works” copyright protection relevant to chip design, and noted that this is US-located businesses only (so what Chinese OEM manufacturers think is neither here nor there). There are really only two things being examined by the study, though - whether a business thinks copyright, patent and/or trademarks are important to their business, and whether businesses actually use those or secrecy to protect their IPs. (And it turns out that a lot of companies that could patent things are instead relying on secrecy to protect their research.) If we’re looking at all US businesses, copyright is a lot more important to a writer than 90-odd percent of other businesses (which are things like restaurants and shoe shops and tax accountants, for whom copyright and patents are irrelevant).