THE ROLE OF PRICE EXPECTATIONS IN THE U.K. MARKET HOUSING
Bibliographic record
Abstract
The objective of this paper is to show the role of survey data published by Royal Institution of Chartered Surveyors (RICS) in forecasting subsequent U.K. house prices, three months ahead. Both the Halifax and the Nationwide indices are used to test the performance of the RICS survey based on bounded rationality. Bounded rationality means that various agents, such as buyers, sellers, estate agents and chartered surveyors, play differing rÙles in the overall formulation of expectations of prices. An S-shaped logistic effect with a diffusion path of expectations from surveyors to other agents is assumed. The empirical analysis makes use of the forwarding-looking price expectations data published by Royal Institution of Chartered Surveyors (RICS) with the actual observations produced by Mortgage lenders, the Halifax and the Nationwide. The study provides econometric evidence for the validity of the logistic formulation and shows that bounded rationality can explain the predictions of agents. The conclusions from this paper is that the logistic function is a superior approximation to the true data generating process compared with the earlier standard Anderson/Pesaran/Thomas approach. An adjustment to the survey is used, which achieves perfect symmetry with ëupí and ëdowní versions of the data, which is also tested.
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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 | 0.006 | 0.058 |
| Meta-epidemiology (narrow) | 0.000 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.003 | 0.003 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| 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".