Addiction Science Tool: Behavioral Economic Demand Tasks Can Identify Kratom Use Disorder Early

Why it matters

A new application of behavioral economics can identify who is developing problematic kratom use before full dependency takes hold — giving clinicians a potential screening tool at a time when kratom use disorder (KUD) is rising and treatment protocols remain underdeveloped.

The big picture

Kratom use disorder is increasingly recognized as a clinical entity, but validated screening tools remain scarce. Behavioral economic demand methods — which measure how persistently a person pursues a substance even as its cost rises — have proven useful for alcohol, tobacco, and opioids, but had never been tested for kratom until this study.

Key findings

• 117 participants with lifetime kratom use completed hypothetical purchase tasks
• Higher demand intensity (buying more kratom regardless of price) significantly predicted past-year KUD
• Lower demand elasticity (continuing use despite price increases) also predicted past-year KUD
• Quantity-based purchase tasks outperformed likelihood-based versions at identifying disorder
• This is the first study to validate purchase task methodology specifically for kratom

What they say

"This study is the first to demonstrate that purchase tasks can quantify the reinforcing efficacy of kratom and emphasizes the temporal specificity of the association between purchase tasks and problem behaviors," the authors wrote.

Bottom line

**A behavioral economics screening tool already used for alcohol and tobacco can now reliably detect emerging kratom use disorder — offering clinicians an early-intervention window.**