Reflections on Modern Macroeconomics: Can We Travel Along a Safer Road?
  In this paper we sketch some reflections on the pitfalls and inconsistencies of the research program - currently dominant among the profession - aimed at providing microfoundations to macroeconomics along a Walrasian perspective. We argue that such a methodological approach constitutes an unsatisfactory answer to a well-posed research question, and that alternative promising routes have been long mapped out but only recently explored. In particular, we discuss a recent agent-based, truly non-Walrasian macroeconomic model, and we use it to envisage new challenges for future research. 
E. Gaffeo, M. Catalano, F. Clementi, D. Delli Gatti, M. Gallegati, and   A. Russo