But geography, climate and long-fixed patterns of behavior pose challenging hurdles.

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The CDOI Approach contains no fixed techniques or invariant patterns in process and no causal theory about the concerns people bring.

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Evolution has thus fixed it so that appropriate patterns of personality are activated in response to the environment in which they are most likely to cause an individual to thrive.

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Without a fixed income, and a greater dependency on farming, the poor often require greater flexibility in their payment patterns.

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