The study compared different models to see which ones are better at predicting economic trends. They found that a certain type of model called the hybrid DSGE model is the best at forecasting inflation in the long term. Another model called the generalized dynamic factor model is better at predicting output growth in both the short and long term. The diffusion index model also outperforms the DSGE model in the short term. Overall, the hybrid DSGE model gives the most accurate forecasts for economic trends.