Yielding / Obstinate
Yielding / Obstinate (sometimes called Resource-protecting / Interest-protecting) is one of the 15 Reinin dichotomies. It is a second-tier dichotomy derived from the combination of the Extroversion/Introversion and Logical/Ethical foundations.
Yielding types: SEI, ILE, IEI, SLE, ESI, LIE, EII, LSE Obstinate types: LII, ESE, LSI, EIE, ILI, SEE, SLI, IEE
In four-letter notation: Yielding types are ET or IF; Obstinate types are EF or IT.
What the Dichotomy Describes
The Yielding/Obstinate dichotomy concerns what each type treats as belonging to their inviolable "personal space" — and consequently, what they treat as freely manipulable.
The 2002–2003 IBPCH study provides the clearest account using a framework of three key concepts: personal space (what a person experiences as an integral part of themselves that they will defend from imposition), resources (what is available at one's disposal — time, money, material assets, energy), and interests (pursuits to which one feels personal attachment and responsibility).
Yielding types treat their resources as their personal space — the domain they experience as inviolable and will defend. Interests, by contrast, are treated as more fluid: Yielding types can adjust, abandon, or modify their interests without experiencing this as an intrusion. The IBPCH study noted: "Resources are 'sacred,' but ideas are freely shared and manipulated." Yielding types are easily aware of the boundaries between their own resources and others', and will protect their resources to the point of conflict if necessary. Their interests, however, can be reshaped or redirected based on what their resources allow.
Obstinate types treat their interests as their personal space — the domain they experience as inviolable. Resources are more fluid: Obstinate types will adjust, deploy, or sacrifice resources in service of an interest without experiencing this as a loss. The IBPCH study noted: "Ideas are 'sacred,' but resources are freely shared and manipulated." Obstinate types are acutely aware of intrusions into their personal sphere of interests and will resist attempts to impose alternative interests on them. Resources, however, can be freely shared or redirected.
Behavioral Observations
The practical consequence of this structure is a systematic difference in how the two types respond to conflict and cooperation.
Yielding types may appear to give ground on positions or goals quite easily — this is because their interests are not their protected domain. But they will respond strongly and sometimes disproportionately to perceived encroachments on their resources. The IBPCH study noted that their response to resource intrusions "may be unduly strong."
Obstinate types may appear to share resources generously — this is because their resources are not their protected domain. But they will respond firmly to attempts to redirect or override their interests. They guard their interests from imposition and may experience others' attempts to modify their goals or values as a personal violation.
Theoretical Basis
The Yielding/Obstinate dichotomy corresponds to the ET combination. It is connected to the evaluatory/situational distinction for rational information elements — Yielding types have evaluatory and situational elements arranged differently than Obstinate types, producing different default relationships to interests versus resources.
Notes on Contestedness
The Yielding/Obstinate distinction is considered reasonably well-characterized by the IBPCH study, which produced the "personal space / resources / interests" framework as its primary conceptual contribution. The alternative labels — Resource-protecting / Interest-protecting — make the core distinction more explicit than the original Yielding/Obstinate terminology.