Presentation held at the 17th Annual Workshop on Economic Heterogeneous Interacting Agents WEHIA 2012, Paris, June 21-23, 2012. Abstract: Agent-based approaches are getting more and more attention recently. In our current work we replicated the initial model of Domenico Delli Gatti et al. described in their work entitled Macroeconomics from the Bottom-up. We address the question of validating and verifying simulations in general, also in the context of economic modelling, and summarize the lessons we learnt from the replication of the aforementioned model. The results highlight the importance of explicit documentation of the actors, timing of the events, and partial results that replicate the hallmarks of the model which can be verified independently with a set of simulation runs. You can find details in the paper included in the electronic conference proceedings!