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Abstract: There is no doubt that portfolio selection problems play an important role in finance, which recommend valuable choices among various investment strategies. In our study, we consider the ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Jon Chase Jon Chase is an editor of smart-home coverage. For Wirecutter, he ...

When people ask for recommendations for home security, one of my first suggestions is always a smart lock. Sure, your door already has a lock, probably a basic deadbolt, but it could be upgraded in so ...