Scholarly writings on the Chinese minority in Thailand have stressed the unique cultural values that traditionally have distinguished Thai from Thai-Chinese communities. Skinner and Coughlin, among others, have argued that the Chinese have traditionally been more diligent, ambitious, and materialistic than Thais, and that—while loyal and disciplined within the bounds of kinship and other narrow primordial affiliations—they act amorally in economic and other dealings with persons outside these affiliative structures. Thais, by contrast, are reputed to be more passive and fatalistic, less materialistic, and less likely to manifest social discipline or sustained commitment to others, even within the family. These value differences are held to be responsible, along with other factors pertaining to patterns of ethnic social organization and differential historical economic and political opportunities, for the relative success of ethnic Chinese in the non-agricultural sectors of the Thai economy.