Over-identifying restrictions in economic analysis

The analysis of empirical economics has long made use of a tool called the generalized method of moments (GMM). This method is used as a generic way of estimating parameters in an empirical model where the general shape of ...

Turning waste PPE into water and vinegar

A process to convert PPE waste into harmless byproducts is a potential gamechanger to the problem of PPE waste filling landfills and polluting oceans and rivers.

Better nitrogen management yields more than it costs

Better management on agricultural lands to reduce nitrogen losses to the environment costs only a fraction of what it provides. This could yield nearly $500 billion in societal benefits globally for both food supply and human ...

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