To conclude, whilst comparative public policy can be separated for the study of international relations, it often involves the examination how domestic and international pressures interrelate to shape policy-making processes. Separating international from domestic pressures become increasingly challenging, as interconnections between nation both deepen and multiply ( a problem examined in detail in Chapter Despite this difficulty, numerous scholars of comparative public policy have tenaciously attempted to provide a clearer understanding of policy-making operates at national and international levels, and the relationship between these levels. Examples of this innovative research ering different policy sectors and nations are discussed at various policy throughout this book.