This book applies scientific approaches to address fiscal and monetary issues, such as data-oriented and econometric methods (a structural vector auto-regression model, a spatial econometric model, and panel estimation with fixed effects, among others). In this manner, the book enriches empirical evidence in academic literature and also contributes to evidence-based policymaking. All the authors are young leaders of government officials in the Ministry of Finance, Financial Regulatory Commission, and National Statistics Office in Mongolia, who have been trained in academic research methodologies at Saitama University, Japan, on JICA-JDS scholarships. Thus, academic researchers and policymakers will be prominent members of the target audience for this work.