Gross domestic product in South America’s second-largest economy, which desperately needs US dollars, will shrink 3 per cent this year, worse than the previous forecast for a 1.5 per cent contraction, as one of the worst droughts in recent memory ravages crucial farm exports.  Argentina’s looming recession will be more profound than first expected as one of the worst droughts in recent memory ravages crucial farm exports.  Gross domestic product in South America’s second-largest economy, which desperately…