What kind of sandwich runs on thorium?
There's a reason KFC is selling battery packs to poor (and hungry) people: Profit.
They might be hungry but are not likely to be poor! Not too many poor people eat at KFC in India. Fast food brands are positioned rather differently here.
Because the Visa/Mastercard cartel want to control any flow of money that isn't a paper check.
Why is it so important to think on your feet for a software development position? You need to be able to think *at your desk*.
Actually you just need to be able to Google the answer.
Merchants will still be liable, as per their agreements with their credit card processors. Merchants are 100% liable for all fraud now, and this won't change. The visa cartel of issuing banks won't penalize its members, because this will be a real cost for them to issue chip and pin cards. Up till now Visa has incurred no cost in security. PCI is 100% cost to the merchant. Visa can say this, and it sounds good, but if a customer disputes a charge in a card present environment and the merchant can't produce a vaild signature under existing contracts the merchant will lose.
Visa doesn't incur cost in the processing. the processors do. Visa sets interchange rates and the processors live off whatever they can upcharge. This upcharge can be anywhere from a few cents flat per transaction, to a set percent upcharge, to a flat percent few for all cards regardless of interchange bucket. Visa is a cartel of card issuing banks, the costs are incurred by the networks such as Buypass or the processors such as First Data.
Regarding the interchange, you can google visa interchange rates and see what they actually are. Merchants will contract with a processor, such as First Data, to handle their credit card transactions. They pay the processor anywhere from a flat fee of a few cents per transaction over interchange to a flat percent fee for all card types. Walmart pays a lower interchange rate than most merchants, but I have no knowledge what they pay their processor. Different classes of merchants pay different interchanges rates, which only proves that larger merchants who could have hindered visa's expansion got sweet rates subsidized by smaller merchants. Interchange is allegedly based on transaction cost, but the majority of the transaction cost is borne by the processor. If you look at the rates, they are higher for so called "rewards" cards. Visa gives you back 1% in "rewards" by charging the merchant 3%. Visa doesn't move the information, the issuing banks have a cost in issuing cards, and billings and collections, but not in the movement of information.
Side note on Buffett, I thought it was interesting that he wholeheartedly supported Obama, and then Obama wholeheartedly tried to squash the Keystone Pipeline. Until the dots were connected and I realized that with no pipeline every gallon of oil and therm of gas had to be transported by Buffett's rail cars.
They haven't replaced the long haul, in fact the rail roads are handling record amounts of freight, but the drawbacks to rail are time issues and the fact that eventually all freight must be put on a truck. Trucks are best for a few hundred air mile routes and for anything that is at all time sensitive. Also, you can always get a cheaper trucker to deliver freight, they are entirely decentralized. With the rails there is little room for negotiation.
Scam for merchants or for consumers? If you're a merchant you are forced to take whatever payment methods customers want. A gas station, for example, that didn't take credit cards would have a lot of customers filling up and then complaining that they don't have any cash. If you're a consumer, credit cards are great.
At a gas station, I've seen numerous charge backs that are entirely customer's fault. For example, woman disputes credit card charges at pump because she sees two charges on one day. Come to find out after pulling pictures of vehicle and plate number, her it was her husband in his car. Or customer swipes his card at one pump, thinks card didn't process, drives to another pump swipes card again, then wonders why he has two charges.
Which is why the interchange rates for "big box" retailers are much lower than for other merchants. Interchange rates should be based on the actual transaction costs now rather than the transaction costs when credit cards were manually processed with knuckle busters.
Smaller merchants subsidize purchases at the "big box" stores.
What credit should be given to these kids who drop the major? They only wanted to be in science because they think there is money in it. Or they watched too much CSI.
People who go to conferences are the ones who shouldn't.