Well, let's see. I work at the agency that does the web site for a major issuer of credit cards.
I get - on a weekly basis - the transaction volumes, the average balances, delinquency rates, late payment rates - all of the good and juicy inside information about the credit card business. I can't share a bit of it.
The decision to take/not take credit cards is one that is made by the business; further, Visa and MC is nothing but a process network and processing entity that operates for the bank. Visa & MC hold no consumer debt - the issuing banks do. Thus you have a Chase Visa, a Wamu Visa, a Citibank Visa, but you (usually) only have an "American Express" card or a "Discover Card".
This is because American Express and Discover issue cards directly and hold consumer debt. They have a higher level of risk. All of these issuing companies have finely tuned mechanisms for detecting changes in the market. You may have noticed that this past summer, the credit card companies began to raise interest rates even on "good customers" who carried debt, made payments on time, but still had their rates raised. This was because they saw the pending slowdown, detected an increase in late/nearly late payments, and they reacted accordingly to protect their cash-flow with higher interest payments.
Cash reserves of these companies are huge...tens of billions. Discover has about 37 billion in all sorts of assets against 6 billion in receivables, Amex has about 127 Billion in assets against about 47 billion in receivables.
You'll need on the order of 50% non-performing receivables to rally damage these firms, and maybe more.
Now, to win the prize, I can tell you about scores of companies that no longer take credit cards - to save on the processing fees and the cut taken by the various players along the way.
Certainly, we've seen the "cash discounts" for gas.
Where I live, "The Baker" - a local business - no longer takes any kind of credit card, and I've been in more than a few places - mostly restaurants - that have gone "cash-only".
I'll post a picture of the sign at "The Baker" after I stop by tomorrow.
If you need a citation right now, well ask Google for "Companies No Longer Accepting Credit Cards" and there we have:
http://www.contracostatimes.com/ci_10531774"Pacific Gas & Electric Co. says it will soon halt a nearly two-year-old pilot program that enabled customers to use Visa brand credit cards for monthly utility payments.
Oct. 1 is the last day that PG&E will accept Visa credit cards for recurring or one-time payments of their bills, said Tamar Sarkissian, a spokeswoman for the San Francisco-based utility. The program was available only to residential customers Sarkissian said.
"When we began the program, it was a no-fee pilot program," said Brian Swanson, a PG&E spokesman.
By state regulations, such a program had to be cost-neutral. "We discovered that the savings from the program did not cover the costs," Swanson said."
I work in NYC, I work in and with financial service firms. Today's "crash" was only big in terms of points, it's nowhere near the 23% decline of 1929, and while there's fundamentally bad stuff happening, there's a hell of a lot more that will need to go wrong before we see a wholesale collapse of the credit card industry. There's MANY more companies ahead in line for failure before we see that.
If you want to worry about a business sector, I'd suggest you take a look at Aviation, which was barely able to handle the fuel price spike, now you'll see a downturn in passenger volume and then you'll see mergers and closures at an incredible pace.
I'd also be looking for a job NOW if I worked in the Hotel industry (might be too late for that).
In terms of opportunities - opening a General Store in what's left of "Downtown America" might not be a bad idea. Localized supply chains.
Also, if you live in a suburban area, an ultra-light (think carbon fiber), high-tech electrically assisted regenerative braking wagon for your team of horses might be a great way to do local delivery for a wide range of companies from the grocery store to the pharmacy. Also would be interesting to see if Machine Shops - 3d Fabs and so forth - start cropping up with the latest in CNC and sintered polymers instead of the old lathes and files.
Milk Men! Put on your Bow Ties! There's a Market Opportunity Coming! Re-Localization of markets!