Find a article related to this question and answer it precisely. Shortages of new tech products have become so common that it is easy to take them for granted. Over the past couple of years, inventories for Google's Pixel phone, Nintendo's Switch, and Apple's iPhone have been very low. You would think after years of accumulated experience, tech companies could deliver goods when and where there is demand. Are these shortages some kind of Machiavellian marketing play? Calculated risk management? Or is it the case that manufacturing millions of complex electronic gadgets, and distributing them globally, is really hard