Managers are often told that formal planning helps. It is useful to examine whether this is good advice. Thus, I applaud this effort to study marketing planning in New Zealand. Nevertheless, I find it difficult to accept the conclusions drawn by the authors of “Marketing Planning in New...

We present evidence on the effect of greater numbers of police personnel on crime and nuisance reduction in the Netherlands. We use a multiple time series design with police regions as the unit of analysis, covering the period 1996-2003. During this period, police resources increased...

Past research on aid and growth is flawed because it typically examines the impact of aggregate aid on growth over a short period, usually four years, while significant portions of aid are unlikely to affect growth in such a brief time. We divide aid into three categories: (1) emergency and...