An efficient one-pot three-component procedure for the synthesis of new chiral spiro-oxindolopyrrolizidines with highly regio-, diastereo-, and enantioselective from 1,3-dipolar cycloaddition of azomethine ylides and optically pure active cinamoyl oxazolidinone are described. The process occurs at room temperature in aqueous ethanol as green solvent and in the absence of any bidentate chelating...

The seminal work of Huggett [“The risk-free rate in heterogeneous-agent incompleteinsurance economies”, Journal of Economic Dynamics and Control, 1993, 17(5-6), 953969] showed that there exists a unique stationary distribution of agent types, given by their individual states of asset and income endowment pairs. However, the question remains open if the equilibrium individual state space might t...

methoxy polyethylene glycol modified magnetite nanoparticles (pegmns) were synthesized and were characterized by scanning electron microscopy (sem), vibrating sample magnetometer (vsm), and x-ray diffraction (xrd) . the adsorption of diazinon onto (pegmns) was investigated by uv spectrophotometry at 236 nm, through batch experiments. the effects of adsorbent dosage, solution ph, contact time, s...

Synopsis: Can economically efficient outcomes be obtained and sustained in the absence of externally enforced property rights? We study the evolutionary properties of a game that exhibits two well-defined Nash equilibria: one generates an inefficient outcome while the other set generates an efficient outcome supported by the potential for retaliation. Although standard forward-looking refinemen...

This paper argues that there are two distinct components in an optimal policy for the unemployed: insuring workers against uncertainty in the prospect of finding a job; and providing workers with the liquidity to smooth consumption while unemployed. In contrast to the leading papers on the optimal contracting approach to unemployment insurance 1Steven Shavell and Laurence Weiss 1979; Hugo A. Ho...