AIG first quarter earnings down slightly on interest rates, returns

American International Group Inc's first-quarter earnings fell slightly as low interest rates and weaker returns from alternative investments offset improvements in its commercial insurance business. Analysts, on average, had expected earnings of $1.19 per share, according to Thomson Reuters I/B/E/S. It was not immediately clear whether the analyst estimate was directly comparable to operating earnings. As interest rates have remained very low, bond investors - including insurers - have str