Which researcher claims that plantations do not offer a significant advantage over small farmers for crops that do not require centralized processing and marketing, such as cocoa and coconuts, since these crops can be cultivated and processed in small quantities without the need for substantial capital investment beyond basic local tools?
Explanation
Yujiro Hayami argues that for crops like cocoa and coconuts, where large-scale processing and marketing are unnecessary, plantations offer no significant benefits over peasants. These crops can be grown and processed in small plots using minimal capital and simple indigenous tools.