Risk and time preferences: linking experimental and household survey data from Vietnam

We conducted experiments in Vietnamese villages to determine the predictors of risk and time preferences. In villages with higher mean income, people are less loss-averse and more patient. Household income is correlated with patience but not with risk. We expand measurements of risk and time preferences beyond expected utility and exponential discounting, replacing those models with prospect theory and a three-parameter hyperbolic discounting model. Comparable risk parameter estimates have been found for Chinese farmers, using our method

Polymer Gels Constructed Through Metal–Ligand Coordination

In the past few years, combining supramolecular and macromolecular chemistries has become of great interest to yield dynamic and responsive assemblies with self-restructuring abilities. Among them, polymer networks, that are held together by one or a combination of supramolecular interactions, offer new possibilities to scientists for the creation of artificial materials with selfhealing properties. In particular, incorporating coordination complexes into polymeric architectures opens up the possibility of imparting the physicochemical properties of both partners to the resulting material. Here, recent achievements in the field of supramolecular gels that are formed via self-assembly of oligo- and polymeric units through reversible metal–ligand interactions are reviewed. The different strategies and routes for the elaboration of those materials are reported as well as the properties that the coordination centers confer to the supramolecular assemblies