NEW YORK CITY-Last year, New York City saw 9.7 million international tourists—a 13% increase over the previous year, according to data from NYC & Co., the city’s tourism arm. The group indicated that many of those came from emerging markets, such as Latin America and Asia. However, some countries mired in the current European debt crisis—Italy and Spain, for instance—also showed positive results.

And at last week’s ICSC conference, New York City Mayor Michael Bloomberg told attendees that retail spending by international visitors to the city was up 37% for the third quarter of 2011, compared to the same quarter a year previous.

Now, though, some experts are predicting that a weakened Euro could have a negative impact on the city’s retail sector, as the European debt crisis continues unabated.