The Mobility Transition Model' for migration was given by:

Question

Accepted Answer

The correct answer is Option 2: Zelinsky. Here's why:

**Why Zelinsky is Correct:**

Wilbur Zelinsky is credited with developing the "Mobility Transition Model" in his 1971 paper, "The Hypothesis of the Mobility Transition." This model directly addresses migration patterns as societies undergo demographic and economic changes associated with modernization. Zelinsky's model links migration trends to the stages of the Demographic Transition Model, outlining how the type, volume, and direction of migration change as countries develop from pre-industrial to post-industrial societies. He specifically theorized that as societies modernize, they experience predictable shifts in migration patterns, including increased rural-to-urban migration, circulation migration, and international migration. Therefore, Zelinsky is the originator of this specific model.

**Why the Other Options are Incorrect:**

*   **Option 1: Ravenstein:** E.G. Ravenstein is known for his "Laws of Migration," which are a set of observations about migration patterns. While influential and foundational to migration studies, Ravenstein did not develop the *Mobility Transition Model* specifically. His work predates the formalization of the Mobility Transition Model by Zelinsky. Ravenstein's laws are more general observations, whereas Zelinsky's model is a structured framework linking migration to demographic and economic development stages.

*   **Option 3: Lee:** Everett Lee is known for his "Push-Pull Theory" of migration. This theory focuses on the factors that either attract people to a new location (pull factors) or force them to leave their current location (push factors). While Lee's work is important in understanding migration decisions, it doesn't constitute the *Mobility Transition Model* as defined by Zelinsky. Lee's theory explains *why* people migrate, while Zelinsky's model describes *how* migration patterns change over time with societal development.

*   **Option 4: Wolpert:** Julian Wolpert is known for his work on behavioral geography and decision-making processes in migration. He contributed significantly to understanding how individuals perceive and respond to opportunities and constraints in different locations. However, he is not associated with the development of the *Mobility Transition Model*. His work focuses more on the individual's decision-making process rather than the broader societal shifts in migration patterns described by Zelinsky's model.