Consumer Sentiment in the United States and the Impact of Mental Disorders on Consumer Behavior—Time Trends and Persistence Analysis

This paper analyzes the stochastic properties in clinical disorders to understand how they have manifested consumer sentiment USA since 1990. The results obtained via fractional integration methodologies exhibit a high degree of persistence, finding non-mean reversion behavior all time series analyzed, except for depressive disorder. Using causality test, we find that mental and substance use disorders, anxiety disorder, schizophrenia, alcohol disorder influence sentiment. Focusing on cointegrating part, conclude an increase previously cited produces decrease Consumer Sentiment Index.