This paper models competing mechanism games as extensive games where the extensive form is incompletely understood by a modeler, typically because the modeler doesn’t see all the messages that are being exchanged and doesn’t understand all the contracts that can be enforced. For this reason, the revelation principle can’t be used to characterize supportable outcomes. The paper provides a relati...

We construct chain maps between the bar and Koszul resolutions for a quantum symmetric algebra (skew polynomial ring). This construction uses a recursive technique involving explicit formulae for contracting homotopies. We use these chain maps to compute the Gerstenhaber bracket, obtaining a quantum version of the Schouten-Nijenhuis bracket on a symmetric algebra (polynomial ring). We compute b...

The article mainly studies the contracting similarity fixed point and the structure of the general Sierpinski gasket. Firstly, the paper analyzes the importance of contracting similarity fixed point in fractal geometry. Based on a series of definitions, the article studies the contracting similarity fixed point. Then, the paper researches on the structure of the general Sierpinski gasket, and d...

Policy measures for preventive and promotive services are increasingly reliant on contracting of NGOs. Contracting is a neo-liberal response relying on open market competition for service delivery tenders. In contracting of health services a common assumption is a monolithic NGO market. A case study of HIV control in Pakistan shows that in reality the NGO market comprises of parallel NGO networ...

This paper documents the emergence of a large bank loan market in absence contracting institutions: trusted assistant 19th century China. These loans were legally unenforceable, one-shot to poor scholars that funded costs assuming lucrative administrative appointments offering ample opportunities for corruption. The loan’s distinguishing feature was unenforceable stipulation borrower incorporat...

This paper examines complementarity among vertical integration decisions in automobile product development. Though most research assumes that contracting choices are independent of each other, contracting complementarity may arise when governance choices impact the equilibrium degree of coordination among agents. First, effective coordination may depend on the level of (non-contractible) effort...

BACKGROUND The South African government intends to contract with 'accredited provider groups' for capitated primary care under National Health Insurance (NHI). South African solo general practitioners (GPs) are unhappy with group practice. There is no clarity on the views of GPs in group practice on contracting to the NHI. OBJECTIVES To describe the demographic and practice profile of GPs in ...