In addition, more securitization, easier online trading, and other financial market developments in recent years have facilitated greater speculative investments, especially in commodity futures and options markets, including those affecting food. Falling asset prices in other financial market segments, following the sub-prime mortgage meltdown in the United States, may be more important for explaining the recent surge in food prices than supply constraints or other factors underlying longer-term gradual upward price trends.
除此之外，最近几年证券化的提高、更便捷的网上交易和其他金融市场的发展使投机性投资愈演愈烈，尤其是商品期货和期权市场，包括那些影响食品价格的期货和期权市场。在美国次贷危机后金融市场上其他门类资产价格的下跌也许比供应量的短缺或造成食品价格长期缓慢上涨的其他因素能够更好地解释最近食品价格的暴涨。