* Definition of "postsecondary education": Does this include associate's degrees, bachelor's degrees, master's degrees, and beyond? A broader definition will result in a higher percentage.
* Definition of "require": Does this mean the job *absolutely requires* a degree, or simply that it significantly increases the likelihood of getting the job? A stricter definition will yield a lower percentage.
* Specific industry and occupation: Some industries (e.g., healthcare, technology) have a much higher demand for postsecondary education than others (e.g., some sectors of construction or retail).
* Data source and methodology: Different studies use different methodologies and data collection techniques, leading to varying results.
While there's no definitive answer, studies often suggest that a significant portion of new jobs, perhaps 50% or more, benefit from or explicitly require some form of postsecondary education. However, this number is subject to the caveats listed above, and the true figure likely falls within a range rather than a precise point. It's also important to note that this doesn't mean that *all* jobs requiring postsecondary education demand a four-year degree; many valuable careers leverage associate's degrees, certificates, and other forms of postsecondary training.