Immigration Policy in Australia, Canada, New Zealand, and the United States: An Overview of Recent Trends
Bibliographic record
Abstract
Immigration policies in most host nations of the west have undergone significant changes in recent years. Based on the four country-specific papers that appear in this section of the journal, and also on our own research, we present an overview of these changes and their context. In all countries, economic considerations play a central role in shaping immigration policy and greater importance is given to scientific research. Several common policy changes are noted in Australia, Canada and New Zealand which include: a shift away from a human capital focus toward more targeted selection based on labor market demand for specific skills, increased emphasis on temporary foreign worker programs, attraction of international students, an overhauling of the refugee system, and regionalization of immigration. In the U.S., while adoption of some of these changes has often surfaced in public policy and academic discussions, legalization of unauthorized migrants remains an important policy debate, with recent arguments focusing on the economic benefits of legalization.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.003 | 0.005 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.006 | 0.017 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.003 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".