Translation guide
The term 'public policy' refers to government actions, laws, regulations, and programs. In Japanese, it is commonly expressed as 公共政策 (kōkyō seisaku), but depending on context, related terms like 行政 (gyōsei) or 施策 (shisaku) may be more natural.
I study public policy.
Often sufficient when context makes it clear it's public/government policy. More common in everyday speech.
A new public policy was announced.
When 'public policy' refers to the practical implementation or administrative aspect.
Refers to public administration, the execution of government policy.
Transparency in public policy is demanded.
When 'public policy' refers to concrete measures, initiatives, or programs.
When 'public policy' implies acting in the public interest.
Literally 'public interest', often used in discussions of policy rationale.
It's a public policy to protect the public interest.
政策 (seisaku) is a broad term for policy. 施策 (shisaku) refers to specific measures or programs within a policy. 対策 (taisaku) implies countermeasures against a problem. Use 政策 for general policy discussions, 施策 for concrete steps, and 対策 when addressing a specific issue.
In many cases, simply using 政策 is sufficient. If you're talking about the field of study, 公共政策 is best. For administrative actions, 行政 is more natural.
少子化対策を強化する。
Strengthen public policy to address the declining birthrate.