Thank you, Barbara. Good morning, everybody. Before Martina gets into the details of the results, I thought I'd comment on some operational drivers for the quarter, a little bit on our thoughts on the U.S. regulatory front, as well as our recent business highlights. For the fourth quarter, we saw net revenue growth of 10.7% as reported or 13% in a constant-currency basis, with healthy growth in gross dollar volume of 11%, cross-border volume grew 18.7%. All that put together helped to fuel fourth quarter operating income growth of nearly 22% and operating margin of 39.6% and EPS growth of 41%. For the full year 2010, we delivered 8.6% revenue growth or 9.5% on a constant-currency basis, operating income growth of almost 22% and EPS growth of 26%. This was driven by strong operational performance, including 9.1% gross dollar volume growth and 15.2% cross-border volume growth. The volume growth for the quarter remained strong outside of the U.S. And we began to see an uptick in the U.S., as well, where fourth quarter volume turned positive. And this is supported by commercial credit volume growth, which was positive for the third consecutive quarter and consumer credit volume growth in the United States, which turned positive for the first time in 11 quarters. Additionally, excluding the de-conversions, underlying U.S. debit growth remained strong. Now these trends are generally supported by our spending post-data as well, spending on necessities such as gross fees was actually above pre-recessionary levels, and discretionary spending, apparel, restaurants showed an improvement although spending in these categories still is below pre-recessionary levels. Based on the spending trends we've seen and the improving consumer confidence, I think I'm cautiously optimistic that we will see continued improvements in 2011. It's just that it's hard to see sustained growth until the housing market and unemployment improve. So let me now go on to the U.S. regulatory update and touch briefly on that for the legal and regulatory developments here in the U.S. As you've probably just seen, we just filed an 8-K to announce that we have executed a judgment and settlement sharing arrangement in connection with our merchant interchange litigation. While this is not a settlement, it does address the allocation of financial responsibilities among all the defendants. And the 8-K set forth with some details, the various promulgations and settlement and judgment scenarios and in a situation where all parties agree to settle, MasterCard's portion of the total settlement would be 12%. So now turning to the financial reform bill. Suffice it to say that we were disappointed with the draft rule proposal released by the Fed on December 16. MasterCard is seeking changes to the Fed's proposal. We will continue to advocate to the Fed and lobby in Congress, both independently and through participation in wider industry efforts. And, of course, we will obviously be submitting regular comments to the Fed as part of the official comment process. I've had the opportunity personally to talk with legislators and regulators in several D.C. visits over the last few weeks. One of the points I've been attempting to clarify is the role MasterCard plays in why this whole interchange issue is so important. We sit in the middle of the payment chain, linking consumers, merchants and banks, all types and all sizes of banks, and we provide products and solutions that are all in at a line that's convenient and secure electronic payment that we all love so dearly to occur. Interchange revenue goes to the issuer not to us, so why is it our issue? And the answer is very simple. What we care about is the health and the vibrancy of the payment system. I care about the continuation of innovation and benefits for all the participants in the payment system. At the end of the day, interchange provides the balance between the cost consumer space and the cost merchant space. When that balance is interfered or tinkered with, the unanticipated consequences become very, very concerning. The balance tilting towards consumers having to pay more for these payment-related services and innovation being stifled at the other end. So you can ask some interesting questions saying, "Why do the Fed -- did they take into account the right cause?" "Was this the right process for a law to be enacted, no debate, no hearings, no analysis no evaluation of the consequences to consumers and others?" And those are all the right questions for legislators and the Fed. Some see this as a battle between banks and merchants and, yes, to a large extent, it is. The consequences to the balance I mentioned earlier are serious. Consumers stand to bear these additional costs, and in some cases, face the loss of access to banking services. It seems to me that the implications are about far more than addressing a battle between large banks and retailers. This is about understanding the consequences to consumers and the payment system, and this debate has been relatively forgotten up until now. That said, as investors, it's important for you to keep in perspective the implications of these regulations to our company, to our business, even if the rules are implemented as currently proposed by the Fed. So let me emphasize a few points. First, we continue to believe that impacts on our debit business will be manageable. The rules regulate debit interchange in the United States, not our network fees. MasterCard does not earn revenue from the interchange, excluding prepaid U.S. debit, remember, represents approximately 40.25% of total MasterCard net revenues in 2010. Second, while our network fees are not being regulated, for sure we anticipate some discussions with issuers regarding our fees. By the way, that's not a new thing. We routinely have discussion with issuers on the cost of our network services when contracts come up for renewal. You would expect that. We have a proven track record of navigating these negotiations in a way that achieves an appropriate value for the services we provide, while making the issuers get the appropriate incentive for them, for the work they do. Third, we continue to anticipate some potential upside to our volumes as a result of the routing non-exclusivity, regardless of how it finally gets sorted out. So from a share perspective, as I said in the past, we have more to gain than to lose. We think that our real near-term opportunities to sell in our strong PIN solution. Remember, it's the only one that operates globally. And beyond this, MasterCard offers a wide range of product constructs to help consumers who are maybe looking for alternatives for debit. Unless you believe that consumers in the United States will revert to cash and check -- and I think that's a real stretch, I do not believe that -- MasterCard is alternative for those who may no longer be able to afford debit cards, and while it will take a little time for these consumers to adapt. The alternative I'm talking about would allow them to continue to benefit in the convenience and safety of electronic payments. So it goes without saying that this is a challenging environment for U.S. debit. The Fed's proposal, as currently written, I firmly believe, will harm consumers. We strongly believe in the value prop [proposition] of our debit products. We will work hard to defend the category. That said, the impacts to our business are limited in many respects and the legislation continues to provide opportunities that balance the risks. Whatever happens, by the time these regulations get implemented in the latter part of this year, it would likely only begin to have any impact on MasterCard in 2012. And I remain optimistic that we can navigate through these regulatory challenges in the U.S., just as we had done successfully in other markets in the past. Meanwhile, we remain focused on executing our growth strategy. In fact, we have signed a significant number of new and renewed deals around the globe in the fourth quarter. So let me take a moment to highlight a few of them. Let's start with prepaid. In December, we announced an agreement to acquire the Card Program Management operations of Travelex, and that's an important driver for our future global prepaid growth. We continue to expect that transaction to be completed in the first half of the current year 2011. In addition, we have launched multiple prepaid programs during the quarter. I'll give you a few examples. Corporate and consumer reloadable prepaid products in the United States, Mexico, Germany, Italy, Switzerland and with Carrefour, for example, in Romania. And public sector programs in the U.K. and the United States with the State of Illinois Department of Labor, delivering unemployment, other benefits and so on, on a prepaid MasterCard. In credit, we continued our momentum on the airline co-brand space, targeting the affluent segment and beyond. For example, we have signed deals to flip the SWISS Air Miles & More affluent portfolio and the Austrian Air Miles & More commercial portfolio from another network. We launched programs at Czech Air and Wizz Airlines, one of the largest discount airlines in Eastern Europe. And the good news and I'm pleased to announce this, we have just signed an agreement to launch a program with Alitalia. So the momentum continues here. In fact, in 2010, we renewed, converted and launched over 20 airline co-brand programs around the globe. So in addition to these airline programs, we launched a co-brand credit card with Tesco and the Bank of Communications in China. And of note here, we have now won 10 of the last 10 competitive co-brand deals in China, all 10. In Canada, after decades of a non-dual environment, we are really excited for the change to permit duality is finally beginning to pay off for us. Like just this week, we have launched three new affluent credit programs with CIBC, which as you know, is Canada's largest credit card issuer, until recently, was an exclusive partner of a competing network. So we continue to make great progress in the strategic mobile space, coming at this in a few different ways. As of last week, we announced a joint venture with Telefónica to provide mobile financial solutions in 12 Latin American markets. This should bring together MasterCard's payment assets and our expertise with Telefónica's mobile expertise, as well as its 87 million customers, many of whom do not have access to financial services. So the JV will basically provide them with mobile payment services to transfer money, reload mobile airtime, pay bills, make retail purchases. I think this JV has great potential to increase financial inclusion and expand acceptance and usage of electronic payments in markets where the war on cash is in a relatively nascent stage. We recently announced an agreement with Airtel Africa and Standard Chartered Bank to link subscribers’ mobile accounts to a virtual MasterCard account number. To start, all that subscribers will do is to use this number to complete mobile e-Commerce transactions. But beyond that, we're actually exploring future capabilities to allow this account number to be able to transact anywhere a MasterCard is accepted. The program starts with Airtel consumers in Kenya, again, many of whom are unbanked, with plans to expand the functionality to key markets within Airtel's footprint across sub-Saharan Africa. And finally, just last week in the United Kingdom, Barclaycard and Orange announced that they will be launching contactless payments via NFC-enabled [Near Field Communication] phones to their customers this summer. That's the first commercial launch of this kind in Europe, and I'm pleased to say MasterCard is the payment network to support the launch of this service. So we're sort of getting on pushing hard in mobile around the world, and I think we've gained significant traction over the past year. After many efforts and investments we have in place, some might actually have more significant outcomes than the others. The point is, I'm confident that we are continuously improving our position toward long-term success in this area as the ecosystems get defined. So with that, let me turn the call over to Martina for a detailed update on our financial results and operational metrics. Martina?