Core Viewpoint - The book "Restoring the Scientific Nature of Economic Research" emphasizes the importance of scientific methodology in economic research, highlighting the need for accurate concepts, reliable data, logical reasoning, and historical analysis to understand economic phenomena [2][3][4]. Group 1: Scientific Methodology in Economic Research - The author summarizes the scientific methodology of economic research with four key elements: concepts, data, logic, and history [3]. - Accurate understanding of economic concepts is crucial, as misinterpretations can lead to flawed conclusions and the emergence of unconventional economic theories [3][4]. - Data must substantiate viewpoints; without empirical support, opinions remain ungrounded [4]. Group 2: Importance of Historical Data - Historical data is vital in economic research due to the irreversible nature of time and circumstances, allowing researchers to analyze past "experiments" to identify common patterns [5]. - The book discusses how to analyze historical economic patterns, emphasizing that optimal economic growth rates should align with a country's potential growth rate, which varies across different development stages [6]. Group 3: Analysis of Economic Phenomena - The author analyzes various economic phenomena, including fiscal policy, real estate, and the internationalization of the Renminbi, stressing the need to understand the cyclical and trend-based nature of economic operations [7]. - A recommendation is made for systematic reform of fiscal policy to enable counter-cyclical adjustments, moving away from a pro-cyclical behavior model [7].