Monday, July 16, 2007

Everything they dont want you know about Credit Cards: Part One

PART ONE

DEFINITIONS

First some terms, along with the meanings they have in the industry:

Cardholder - an individual to whom a credit card is issued. Typically, this individual is also responsible for payment of all charges made to that card. Corporate cards are an exception to this rule.

Card Issuer - an institution that issues credit cards to cardholders. This institution is also responsible for billing the cardholder for charges. Often abbreviated to "Issuer".

Card Accepter - an individual, organization, or corporation that accepts credit cards as payment for merchandise or services. Often abbreviated "Accepter" or "merchant".

Acquirer - an organization that collects (acquires) credit authorization requests from Card Accepters and provides guarantees of payment. Normally, this will be by agreement with the Issuer of the card in question.

Many issuers are also acquirers. Some issuers allow other acquirers to provide authorizations for them, under pre-agreed conditions. Other issuers provide all their own authorizations.

TYPES OF CARDS

The industry typically divides up cards by the business of the issuer. So there are bank cards (VISA, Master Card, Discover), Petroleum Cards (SUN Oil, Exxon, etc.), and Travel and Entertainment (T&E) cards (American Express, Diners' Club, Carte Blanche). Other cards are typically lumped together as "Private Label" cards. That would include department store cards, telephone cards, and the like. Most private label cards are only accepted by the issuer. People are starting to divide the telephone cards into a separate class, but it hasn't received widespread acceptance. (This is just a matter of terminology, and doesn't affect anything important.)

Cards are also divided by how they are billed. Thus there are credit cards (VISA, MC, Discover, most department store cards), charge cards (American Express, AT&T, many petroleum cards) and debit cards. Credit cards invoke a loan of money by the issuer to the cardholder under pre-arranged terms and conditions. Charge cards are simply a payment convenience, and their total balance is due when billed. When a debit card is used, the amount is taken directly from the cardholder's account with the issuer. Terminology is loose - often people use "credit card" to encompass credit cards and charge cards.

A recent phenomenon is third-party debit cards. These cards are issued by an organization with which the cardholder has no account relationship. Instead, the cardholder provides the card issuer with the information necessary to debit the cardholder's checking account directly through an Automated Clearing House (ACH), the same way a check would be cleared. This is sort of like direct deposit of paychecks, in reverse. ACHs love third-party debit cards. Banks hate them.

Another recent addition is affinity cards. These cards are valid credit cards from their issuer, but carry the logo of a third party, and the third party benefits from their use. There is an incredible variety of affinity cards, ranging from airlines to colleges to professional sports teams.

HOW THEY MAKE MONEY

Issuers of credit cards make money from cardholder fees and from interest paid on outstanding balances. Not all issuers charge fees. Even those that do, make most of their money on the interest. They really LIKE people who pay the minimum each month.

Issuers of charge cards make money from cardholder fees. Some charge cards actually run at a loss for the company, particularly those that are free. The primary purpose of such cards is to stimulate business.

Issuers of debit cards may make money on transaction fees. Not all debit card transactions have fees. Most debit cards exist to stimulate business for the bank and to offload tellers and back-room departments.
To date, third-party debit cards exist solely to stimulate business. Providers of such cards make no direct money from their use.

Acquirers make money from transaction charges and discount fees. Unlike the charges and fees mentioned above, these fees are paid by the accepter, not (directly) by the cardholder. (Technically, it is not legal for the merchants to pass these charges directly to the consumer. Some petroleum stations have gotten away with giving a discount for cash, and it has survived court challenges so far.) Transaction charges are typically in pennies per transaction, and are sensitive to the type of communication used for the authorization. Discount fees are a percentage of the purchase price and are sensitive to volume and compliance to rules. One way to encourage merchants to follow certain
procedures or to upgrade to new equipment is to offer a lower discount fee.

Until fairly recently, the only motivation for accepters was to expand their business by accepting cards. Reduction of fraud was enough reason for many merchants to pay authorization fees, but in many cases, it isn't worth the cost. (That is, it is cheaper to pay the fraud than to prevent it.) Recently, electronic settlement has provided merchants with an added benefit by reducing float on charged purchases. Merchants can now get their accounts credited much faster than before, which helps cash flow.

Companies that issue charge cards are real keen on float reduction. The sooner they can bill you, the sooner they get their money. Credit card companies are also interested in float reduction, since the sooner they bill, the sooner they can start charging interest. Debit cards typically involve little or no float.

Affinity cards usually pay a percentage of purchases to the affinity organization. Although it may seem obvious to take this money from the discount fee, this doesn't work since the issuer is not always the
acquirer. The money for this usually comes from the interest paid on outstanding balances. Essentially, the bank is giving a share of its profits to an organization in turn for the organization promoting use
of its credit card. The affinity organization is free to use its cut any way it wishes. An airline will typically put it into the frequent flyer program (and credit miles to your account). A college may put the money into the general fund or into a scholarship fund. Lord only knows what a sports team does with the money!

THE PLAYERS AND THEIR ROLES

American Express (AMEX) is a charge card issuer and acquirer. (Their other businesses are not important to this discussion.) All AMEX purchases are authorized by AMEX. They make most of their money from the discount fees, which is why they have the highest discount fee in the industry. That's one reason why AMEX isn't accepted in as many places as VISA and MC, and a reason why many merchants will prefer another card to an AMEX card. The control AMEX has over authorization allows
them to provide what they consider to be better cardholder ("cardmember" to them) services.

VISA is a non-profit corporation (SURPRISE!) that is best described as a purchasing and marketing coalition of its member banks. VISA issues no credit cards itself - all VISA cards are issued by member banks. VISA does not set terms and conditions for its member banks - the banks can do pretty much as they please in signing cardholders. All VISA charges are ultimately approved by the card issuer, regardless of where the purchase was made. Many smaller banks share their account databases with larger banks, third parties, or VISA itself, so that the bank doesn't have to provide authorization facilities itself.

Master Card (MC) is very much like VISA. There are some differences that are important to those in the industry, but from the consumers standpoint they operate pretty much the same.

Discover cards are issued by a bank owned by Sears. All Discover purchases are authorized by Sears.

Most petroleum cards, if they are even authorized, are authorized by the petroleum company itself. There are exceptions. Fraud on petroleum cards is so low that the main reason for authorization is to
achieve the float reduction of electronic settlement.

THE BUSINESS RELATIONSHIPS

Card acceptors generally sign up with a local acquirer for authorization and settlement of all credit cards. This acquirer may or may not be a card issuer, but certainly will not have issued all the cards that the merchant can accept. The accepter does not generally call one place for VISA and a different place for MC, for example. At one time, this was necessary, but more and more acquirers are connected to all networks and are offering a broader range of services.

Acquirers generally are connected to many issuers, and pay transaction charges and discount fees to those issuers for authorizations. Thus, the acquirer is actually making money on the difference between fees paid and fees billed. Most acquirers gather together transactions from many accepters, allowing them to get volume discounts on fees. Since the accepters individually have lower volume and are not eligible for those discounts, there is a markup that the acquirer can get away with. Acquirers also, of course, provide the convenience of a single contact.

Most large banks are issuers and acquirers. Things get real interesting when it's time to settle up. Some small banks are only issuers. There are third parties that are only acquirers.

In future episodes, I'll explain how standards help all this chaos work together, and give details about how the authorization process happens.

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Sunday, June 24, 2007

Everything they dont want you know about Credit Cards: Part 6

Part 6 - Networks

ACCESS NETWORKS

For most credit card applications, the cost of the access network is the single biggest factor in overall costs, often accounting for over half of the total. For that reason, there are many different solutions, depending on the provider, the application, and geographical constraints.

The simplest form of access network uses 800 service, in one of its many forms. Terminals at merchant locations across the country dial an 800 number that is terminated on a large hunt group of modems, connected directly to the acquirer's front-end processor (FEP). The FEP is typically a fault-tolerant machine, since an outage here will take out the entire service. A large acquirer will typically have two or
more centers for terminating the 800 service. This allows better economy, due to the nature of 800 service tariffs, and allows for disaster recovery in case of a failure of one data center. An advantage
of 800 service is that it is quite easy to cover the entire country with it. It also provides the most effective utilization of your FEP resources. (A little queuing theory will show you why.) However, 800 service is quite expensive. It always requires 10 (or 11) digits dialed, and in areas with pulse dialing it can take almost three seconds just to dial 1-800. The delay between dialing and connection is longer for 800 calls than many other calls, because of the way the calls get routed. All of this adds to the perceived response time at the merchant location, even though the acquirer has no control over it.

Large acquirers prefer to offer some form of local access service. In this service, terminals at the merchants dial a local telephone number to gain access to the acquirer. Typically, the local number actually connects to a packet network, which then connects to the acquirer. If the packet network is a public network, the terminal must go through a login sequence to get connected across the packet network. Typically, local calls are much less expensive than 800 service calls, and local calls typically connect faster than 800 calls. The cost of those calls are absorbed by the merchants directly. In those few remaining areas where local calls are still free from a business line, this works out well for the merchant. Otherwise, the merchant can end up spending a lot of money on phone calls. Usually, the acquirer has to offer lower prices to accepters who use local calls, to help offset this. Even so, these networks are generally much less expensive for the acquirers. Such networks are difficult to maintain, due to the distributed nature of the access network. Since most packet networks are much more likely
to experience failures than the phone network is, the merchant's POS terminal is usually programmed to dial an 800 number for fallback if the local number doesn't work. Also, it is generally not cost-effec-
tive to cover every free calling area in the entire country with access equipment, so some 800 service is required anyway. There is also an administrative headache associated with keeping track of the different
phone numbers that each merchant across the country needs to dial. When you have tens of thousands of terminals to support, this can be formidable.

Acquirers are beginning to experiment with Feature Group B (FGB) access. FGB access was the method of access used to get to alternative long-distance carriers before "equal access" was available. The tariffs are still on the books, and they are favorable for this application. FGB access provides a single number, nationwide, for all merchants to dial in order to gain access to the acquirer. The call has
simpler (hence, presumably, faster) routing than 800 service, and the call is charged to the acquirer, not the accepter. FGB access does have to terminate on equipment that is physically located in the Local
Access Toll Area (LATA) where the call originated, so there is the problem of having distributed equipment, as above. This also implies that it is not cost-effective to deploy FGB access everywhere, as well. There are also some technical oddities of FGB, due to its original intent, that have made it difficult to implement so far.

The other big switched access capability that is likely to have an impact in the future is ISDN. So far, this has been inhibited by limited availability and lack of adequate equipment on the merchant end, but it could be very beneficial when these problems are solved.

Private-line networks are pretty straightforward applications of point-to-point and multipoint private lines. Since private lines are quite expensive, engineering of the networks is challenging. Usually, sophisticated software is used to determine the optimum placement of concentrators in order to minimize costs. Since tariffs, real estate prices, and business needs change frequently, maintaining a stable, cost-effective network is hard work. A typical asynchronous private line network will have multiplexers at remote sites, with backbone links to companion multiplexers at a central site. Synchronous private line networks may use multiplexers, or remote controllers, or remote FEPs, depending on the application and the availability of real estate.

INTERCHANGE NETWORKS

Interchange networks physically consist mostly of point-to-point private lines. In many of the large interchange networks, there is a central "switch" that takes transactions from acquirers (thereby acting as an issuer), and routes them to issuers (thereby acting as an acquirer). Often the switch provider will actually be an acquirer or issuer as well, but this is not always the case. Usually, the provider of the
switch defines standard message formats, protocols, and interchange rules. These formats and protocols usually comply with national and international standards, but sometimes do not. Often the switch will provide translation between different message formats and protocols.

The switch provider is generally very concerned that settlement complete successfully. Failure to settle with one or more large issuers can leave the switch provider with an overnight deficit of a couple million dollars. Even though this is a temporary situation, it has significant financial impact.

In some current networks, authorization and settlement take place on completely separate facilities, with separate hosts in some cases. This is mainly due to the history of the industry in this country. Re-
call that authorizations were originally done by voice calls, and settlement was done by moving paper around. These two processes were automated at different times, by separate means. Thus VISA has a BASE 1 network for authorization, and a BASE 2 network for settlement. Likewise, MasterCard has INET and INES, one for authorization and one for settlement. These functions are becoming less and less separated as communication and computer facilities evolve, and will probably be completely integrated over the next five to ten years.

Interchange networks are probably the most volatile part of the ATM market right now. There is currently a shakeout going on in much of the market, with larger, more aggressive regionals buying out standalone networks and smaller regionals. This causes local banks to change local and national network affiliation from time to time. So a card may work in a given ATM one day, but fail in that machine the next, which confuses many consumers. Most large regional and national networks have operating regulations requiring labeling of ATMs and cards, so that if you see the same logo on your card and the ATM, you can be pretty sure it will work.

Some regionals are interconnected, and others are not. The two biggest nationals, Cirrus and Plus, have operating regulations that effectively prohibit a member of one network from connecting to the other. But a regional on Cirrus could be connected to a regional on Plus. In that case, whether a machine will take your ATM card depends on the routing algorithm used. In most cases, the acquirer will have a table of issuers that are directly connected, and will send anything else to the regional switch. The regional switch will have a table of each issuer it is directly connected to, and tables of which cards are acceptable to other regionals it interchanges with. Anything else goes to the national switch. The same process happens in reverse from there. Often the order of search in the routing tables is determined by fee scales, not geography, so transactions can be routed in completely non-obvious ways.

So the easiest way to tell if your card will work in a given ATM is to stick the card in and try. I don't know of any machine that will eat a card just because it can't route the transaction - it will generally give some non-specific message about being unable to complete the transaction and spit the card back out. Of course, if the transaction is completed from a machine that you're not sure of, you also aren't sure what the fee is going to be if your bank passes those fees on to you. Sometimes the fee will be printed on the receipt, but usually it isn't. If you do the transaction in a foreign country, you may not know the exchange rate used. (I once couldn't balance my checkbook for a month until I got a statement with the transaction I did at Banc du Canada in Montreal.) But if you need the money and are willing to pay the fee, you have little to lose by trying out just about any ATM.

This completes the course in Credit Card 101. Hope you all found it
enjoyable and informative.

Joe Ziegler
att!lznv!ziegler

Additional reading:

Magnetic Stripe Technology Index
How plastic card magnetic stripe are encoded, ISO-7811 standards

Credit Card Validation - Check Digits
Illustrates how the Luhn formula works using an example credit-card number

Everything you ever wanted to know about CCs
An easy-to-understand, in-depth look at credit cards and the credit-card industry.

Luhn Formula
Explanation of the formula used to generate and/or validate the accuracy of credit-card numbers.

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Thursday, April 26, 2007

Mobility fund of artists and cultural operators within the African continent.



Art Moves Africa (AMA) aims to facilitate cultural and artistic exchanges within the African continent. AMA offers travel funds to artists, arts professionals and cultural operators living and working in Africa to travel within the African continent in order to engage in the exchange of information, the enhancement of skills, the development of informal networks and the pursuit of cooperation

.

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Saturday, March 3, 2007

6 Tips For Saving Gas

In the past months we have seen the price of gasoline soar higher than ever before, and this can be hard on people who have a budget that is tight. Even though gas prices have come down a slight bit, you still will want to do everything you possibly can to save on the money you have to pay out for gas. There are a variety of ways that you can save gas, and save money.

Tip#1 - Start Carpooling

Carpooling is a great idea for fellow students and fellow employees both. If you can find people that are going to the same place you are you can save gas by riding together. It may be a good idea to trade off on who is driving from week to week so no one person gets stuck having to drive all the time. If you have to take your children to school or other functions you can also work on trading off with your friends and neighbors to take them there.

Tip#2 - Public Transportation

If it is possible you can take public transportation to work instead of driving your car. Not only will this save you money on gas, but you will also be able to relax and not worry about having to drive through all that rush hour traffic. You may even be able to fit in a quick nap on your way to work or on your way home.

Tip#3 - Price Shop

Often it may be so convenient to buy your gas at the small gas station just up the road, but to save some money on gas you may want to check the prices at other gas stations that are nearby as well. Even if the difference is only a few cents, after putting hundreds of gallons of gas in you vehicle each year, those few cents are going to add up to quite a sum of money.

Tip#4 - Get Moving

You can save some money on gas if you start walking to where you are going, or you can ride a bike as well. You will not have to worry about paying to park your car, and the exercise will be great for you body. If you are walking or biking you will not have to worry about those huge traffic jams either.

Tip#5 - Take Care of Your Car

It is always important to take care of your car so it gets the best gas mileage possible. Also be sure to plan where you are going before you go so you will not have to backtrack and waste gas. If you can, you should use your air conditioning as little as possible because using it takes more gas. Roll down your windows and you will use less gas.

Tip#6 - Check your Tires

It is important that you check the air pressure in your tires as often as possible. If your tires are too low, or the pressure in them is unequal it can make your car burn more gas. You should also be careful how you drive. If you take off from every red light very fast you are going to burn more fuel, so it is best to take off a little slower.

These are a few tips that can help the money conscious person to save money on gas. Even as gas prices drop, these tips can still help you to save more money. Conservation is important, so take advantage of these tips, save money, and save gas.

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