$Coca-Cola(KO)$ released Q2 earnings before Tuesday open. As the best representative of consumer staples, it means a lot.From Q2 earnings, Coca-Cola is convinced no longer an ordinary consumer product. For most consumers, it is a necessary like daily necessities, te Demand elasticity of necessities is quite low, that is, people are extremely insensitive to price changes. An 10% (probably a few cents) price raise will not change any demands.Very little elasticityAlthough Coca-Cola is bearing inflation like others (such as $Wal-Mart(WMT)$ ), it&nb