Approximately 50% of the households in America invest in the stock market. In many cases the investor's buy and hold strategy leads to negative returns. Given the stock market fluctuates up and down as time progresses, analysts examine stock prices, volumes traded and ratios to recommend buy and...

We consider a single-product periodic-review inventory system for a retailer who has adopted a dual sourcing strategy to cope with potential supply process interruptions. Orders are placed to a perfectly reliable supplier and/or to a less reliable supplier that offers a better price. The success...