Rents tend to be relatively high in developing countries and also very fungible, so that differences in the scale of the rent and in its distribution among economic agents profoundly affect the nature of the political state and the development trajectory. This paper identifies two basic trajectories to a high-income democracy linked to the scale and deployment of rents. Low-rent countries tend ...

Enantiomerically pure bis-heterocycles containing a (S)-proline moiety have been prepared starting from (S)-N-benzylprolinehydrazide (2b). The reactions with isothiocyanates or butyl isocyanate in refluxing MeOH led to the corresponding thiosemicarbazide 5 and semicarbazide 9 with a N-benzylprolinoyl residue. The structure of the tert-butyl derivative 5d was established by X-ray crystallography...

The reactions of aryl (selenophen-2-yl) thioketones with CH2N2 occur with spontaneous elimination of N2, even at low temperature (-65°), to give regioselectively sterically crowded 4,4,5,5tetrasubstituted 1,3-dithiolanes and/or a novel type of twelve-membered dithia-diselena heterocycles as dimers of the transient thiocarbonyl S-methanides. The ratio of these products depends on the type of sub...

If a public project is Þnanced through private contributions with convex costs, project completion may be delayed. The paper examines how asymmetries, the order of moves, and the absence of commitment will affect the completion time. All three factors are shown to cause delay, although for different reasons. Without commitment, individual contributions are strategic complements in the completin...