Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Cross-sectional analysis looks at data collected at a single point in ... company is best given the metrics she cares about. Time series analysis, also known as trend analysis, focuses in on ...

Methods: Our data source was the Drug Shortages Canada ... Continued vigilance is needed to sustain improvements. Using a cross-sectional design, we tracked changes in drug shortages over time by ...