Until recently, there existed minimal guidance on the use of LC-MS for clinical diagnostics. The Clinical and Laboratory Standards Institute (CLSI) has now presented a standardized approach for LC-MS assay development and verification in its new guidance document, CLSI C62-A. This document should aid in the harmonization of LC-MS methods and thus have significant ramifications for the evolution...

The theory of melioration, originally formulated for individual decision-making contexts, is formally extended to a game theoretic framework. This paper proves the existence of a distribution that is a melioration strategy on the part of all players. Further, the question of stability of such a distribution is studied. JEL Classification Numbers: C62; C72.

JEL classification codes: C51 Model construction and estimation C62 Existence and stability conditions of equilibrium D84 Expectations Speculations This paper proposes the Potluck Problem as a model for the behavior of independent producers and consumers under standardeconomicassumptions, as a problemof resourceallocation inamulti-agent system inwhich there is no explicit communication among th...

In an economy with commodity-pairwise trading posts and transaction costs, commodity money is endogenously determined in general equilibrium. Absent double coincidence of wants, the lowtransaction cost commodity (with the narrowest proportional bid/ask price spread) becomes the common medium of exchange. JEL Classification: C62, E40

This communication describes the development of a thiamin sensor based on the bacterial thiamin binding protein. A triple mutant (C48S, C50S, S62C) of TbpA was labeled on C62 with N-[2-(L-maleimidyl)ethyl]-7-(diethylamino)coumarin-3-carboxamide (MDCC). Thiamin binding to this protein reduced the coumarin fluorescence giving a thiamin sensor with low nanomolar sensitivity.

We consider the static and dynamic models of Cournot duopoly with tax evasion. In the dynamic model we introduce the time delay and we analyze the local stability of the stationary state. There is a critical value of the delay when the Hopf bifurcation occurs. Mathematics Subject Classification: 34K18, 47N10; Jel Classification: C61, C62, H26

This note argues about a central analytical inconsistency of Ericson and Pakes (1995). Notwithstanding the explicit claims of the article, the formal hypotheses employed there imply that a firm’s investments do not affect both the evolution of this firm and the dynamics of the whole industry. JEL Classification Numbers: C62, D57, E13, L11.

This paper develops a theory of regular Markov perfect equilibria in dynamic stochastic games. We show that almost all dynamic stochastic games have a finite number of locally isolated Markov perfect equilibria that are all regular. These equilibria are essential and strongly stable. Moreover, they all admit purification. JEL classification numbers: C73, C61, C62.

We investigate the connection between equilibrium existence and its attainability through simple market mechanisms in exchange economies with indivisibilities and complementarities. The analysis suggests that attaining efficient outcomes through simple non-combinatorial auctions may be problematic even when market clearing prices exist. JEL classification code: C62, D44, D51