The article explores how different types of training can boost firm productivity in a local economic system in Emilia Romagna. By using a theoretical framework based on lattice theory and supermodularity, the researchers found that general and specific training can work together to improve productivity. Their analysis of real-world data showed that firms investing in both training and research and development tend to be more productive. This suggests that having a mix of training programs can help companies succeed, but simply having training programs in place may not be enough - the quality and level of training provided also play a role in boosting productivity.