NEW YORK ( TheStreet) -- U.S. stock futures were suggesting a slightly higher open for Wall Street on Tuesday despite worries over a slowing global economy. European stocks were trading mixed while Asian shares ended Tuesday's session mostly flat. Japan's Nikkei 225 index closed 0.3% higher at 9,091.54. The economic calendar in the U.S. on Tuesday the S&P/Case-Shiller 20-city home price index for July at 9 a.m. EDT, consumer confidence data for September at 10 a.m., and the Federal Housing Finance Agency housing price index for July at 10 a.m. U.S. stocks on Monday finished finished modestly lower with sentiment soured by frustration with the efforts of European leaders to address the region's debt crisis. The Dow Jones Industrial Average lost nearly 21 points, or 0.15%, to close at 13,559. The blue-chip index is still up roughly 11% so far in 2012. Caterpillar ( CAT), the heavy equipment company, on Monday provided a forecast for earnings of $12 to $18 a share in 2015 on sales ranging from $80 billion to $100 billion. Analysts forecast a profit of $14.99 a share in 2015 on revenue of $97.13 billion. "There are a number of geopolitical and economic factors driving uncertainty in the world today, but our base case scenario calls for modest global economic growth over the next few years," said Doug Oberhelman, the company's chairman and CEO, in a statement, also calling this "a reasonable view and the most likely outcome." Yahoo! ( YHOO) CEO Marissa Mayer is expected to unveil her strategy Tuesday for turning around the struggling Internet giant. Reports said Mayer will probably focus on search and ad technology. The earnings calendar Tuesday includes Jabil Circuit ( JBL), Carnival ( CCL), FactSet Research Systems ( FDS) and Vail Resorts ( MTN). Google ( GOOG)launched the Nexus 7 tablet Tuesday in Japan, the first country in Asia outside Australia to sell the 16-gigabyte device, according to Reuters. The tablet already is available in France, Germany, Spain, Canada, the U.K. and the U.S. The Foxconn factory in China that makes Apple's ( AAPL) iPhones has resumed production following a brawl involving some 2,000 workers on Monday. The fight highlighted chronic labor tensions in China. -- Written by Joseph Woelfel >To contact the writer of this article, click here: Joseph Woelfel >To submit a news tip, send an email to: firstname.lastname@example.org.