Table 1.

Broad and narrow Types of Reasons

Notes: • This table lists all the mentioned reasons why PTA should or need not be ensured, including those that were rejected, or neither rejected nor endorsed. Given that reasons will in any case need to be appraised, it better aids the decision-maker to err on the side of comprehensiveness. • Finer-grained data is available on request. • No colour background: reason used just for the view that PTA should be ensured; number in square brackets with no colour background is number of reason mentions used for the view that PTA should be ensured. • Grey background: reason used just for the view that PTA need not be ensured or with unclear implications; number in square brackets with grey colour background is number of reason mentions used for the view that PTA need not be ensured. • Red background: some reason mentions were for the view that PTA should be ensured and some for the view that it need not be ensured, or implications for PTA were left unspecified. • Note that, for many broad Types of Reason, the number after the broad type (e.g. Avoid exploitation) is more than the sum of numbers after the narrow types because, for colourless or grey reasons the number given excludes the few reason mentions with unclear implications. • Round parentheses: reasons followed by the same number in parentheses were merged in the sensitivity analysis.