Alcoa Inc. is scheduled to kick off the first-quarter earnings reporting season on Monday, after the market closes. Wall Street analysts are expecting a third straight quarter of declines in both earnings and revenue, given weakness in aluminum prices, which would mark a fitting start to what is projected to be the fourth straight quarter of earnings declines for the S&P 500 companies. Earnings: Alcoa is expected to report earnings per share of 2 cents, according to the average estimate of analysts surveyed by FactSet, well below earnings of 28 cents a share, in the same period a year ago. That is down from FactSet EPS consensus expectations of 8 cents at the end of 2015. Estimize, which surveys sell-side analysts like FactSet, but also hedge-fund executives, brokerages and buy-side analysts, suggests the outlook is a little better, with an EPS estimate of 4 cents. Alcoa had beat EPS expectations for the first quarter, after missing the previous two quarters. Revenue: The FactSet consensus for revenue is $5.15 billion, down from $5.82 billion a year ago. The consensus has declined from $5.48 billion at the beginning of the quarter. Those crowdsourced by Estimize are projecting, on average, revenue of $5.31 billion. Alcoa missed revenue expectations the last two quarters. And what do you expect?