Competitive dialogue in Spain and innovation: the case of the health sector / Some economics of pre-commercial procurement / Implication of the Lianakis decision / OPTIONCARDS: An Interactive Approach to Elicit Qualification and Award Criteria Weight / Is Public Procurement Going Green? Experiences and Open Issues / The Lianakis ruling and good procurement / When Amending Leads to Ending: a theoretical and practical insight into the retendering of contracts after a material change / Strengthening the Level of Integrity of Public Procurement at the Execution Phase: Evidence from the Italian National Frame Contracts / Retendering or sale of contract in case of bankruptcy of the contractor? Different solutions in an EU comparative perspective / Public Procurement and SMEs: an approach to increased participation / Socio-economic Programs in Public Procurements: Are Preferences Fair and Effective for All? / Contested Terrain: Analysis of Minority-Owned Construction Firms Selling Goods and Services to Government Clients in the U.S. / SMEs and public contracts: an EU based perspective