Improper quality adjustment has long been identified as a source of potential measurement bias in consumer price indices (CPIs). However, as no benchmark for quality adjustment exists, it has always been difficult to estimate a potential bias. For this paper, we develop a corridor in which...

This study presents a comprehensive bibliometric and systematic literature review analysis of the literature on the Big Mac Index (BMI) to identify its foundational aspects and summarize key findings. The BMI, an informal measure of purchasing power parity, has garnered scholarly interest in...

This study aims to construct a sentiment index for predicting CPI in Vietnam. Adopting a lexicon-based approach, the study utilized two widely recognized sentiment dictionaries, specialized in financial and economic contexts, to build the sentiment index. Data was mined from nine official...