杨寄洲 et al.，1700对近义词语用法对比, p.1514 (original)
The above example comes from a reference book which describes the differences and similarities between Chinese synonyms. It lists 政策 as a collocation for both...
So I don't see why 执行 is considered incorrect in the example above.
Question: In the above, why is 实行 correct, and 执行 incorrect?