Kurt Braun, 88, a retired researcher and specialist on foreign labor developments for the Bureau of Labor Statistics who fled Nazi Germany in 1939, died of pneumonia Sept. 19 at his home in Alexandria.

Mr. Braun was the author of 11 books and dozens of articles on labor and economics. He retired from the Labor Department in 1967 after seven years with the Bureau of Labor Statistics. From 1951 to 1960 he did research on foreign labor conditions and comparative economic systems for the CIA. He was at the Brookings Institution as a specialist in economics and labor law from 1942 to 1951.

During that period Mr. Braun was also a visiting professor at Howard University and a consultant to the War Department.

He was born in Berlin and served in the aviation division of the Imperial German Navy during World War I. After the war he graduated from the University of Berlin, and later received degrees in canonical and civil law from the University of Breslau. From 1924 to 1928 he practiced law in Berlin, specializing in labor law.

Mr. Braun was a Jew, and after the Nazi government came to power in Germany in 1933 his practice also came to include the defense of German Jews who were being prosecuted in the Nazi courts. He helped more than 100 obtain permission to leave Germany before leaving the country himself in April 1939.

After leaving Germany, Mr. Braun went to England for a year, then came to the United States where he was a research associate in economics at the University of New Hampshire before coming to Washington in 1942.

Since his retirement from the Bureau of Labor Statistics he had continued to write on economic matters.

Mr Braun is survived by his wife, Helene, of Alexandria; a daughter, Suzanne Ripley of Falls Church, and two grandchildren.