Pricing – flexible or fixed?

When deciding on a flexible or fixed price for electricity or bank loan interests you are often in a difficult situation of choice. Which one is to be preferred? Putting this situation in relation to the principle of the transaction equation, I realized this. The flexible, demand dependent, price is the price of a commodity. The fixed price may rather be seen as that of a branded product, as the offer contains a component of reliability – no surprises here. On the buyer’s side this would be regarded with trust and comfort. By the addition of this positive aspect to the product, the supplier would be able to ask a higher price over time. This potential for a metavalue clearly indicates a branded product. I will appreciate your comments – does the difference in the offers mean the fundamental difference between non-branded and branded products? Do visit my General Theory of Marketing for a comprehensive discussion.