NEW YORK (AP) â¿¿ A survey of small business owners shows they remained cautious about borrowing money during the summer. The survey released Thursday by researchers at Pepperdine University and Dun & Bradstreet Credibility Corp. shows that demand for financing was little changed in the third quarter from the first three months of the year, when researchers made their last survey. Companies still said tight credit conditions were restricting their growth. And the number of businesses that had recently tried to get financing was unchanged. The survey confirms other signs of caution by small business owners, including their slow pace of hiring. More than 3,400 companies in Dun & Bradstreet Credibility's database took part in the survey. The company supplies credit ratings on businesses.