Steven Nickolas is a writer and has 10+ years of experience working as a consultant to retail and institutional investors. Robert Kelly is managing director of XTS Energy LLC, and has more than three ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. David Kindness is a Certified Public ...

This paper examines an exchange economy with heterogeneous indivisible objects that can be substitutable or complementary. We show that a competitive equilibrium exists in such economies, provided ...

Systems composed of activity choices that interact in nonsimple ways can allow firms to create and sustain a competitive advantage. However, in complex systems, decision makers may not always have a ...

Recent macroeconomic developments in both Japan, which just fell back into recession, and much of the Eurozone, where unemployment is stuck north of 11 percent, reminded me of this little box I made a ...