Container freight rates and economic distance: a new perspective on the world map
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
The objective of this paper is to explore how container freight rates vary globally and regionally and over time. This is achieved in part by considering freight rates as a measure of economic distance. Unlike absolute distance, which is invariant between locations, economic distance is a relative measure, but like absolute distance it can be mapped. In this paper, the geographical distribution for a set of rates from markets around the world to the ports of the Northern Range of Europe is mapped. This cartographic representation provides a unique opportunity to explore the spatial arrangement of markets while providing a number of insights into the spatial structure of rates during a period of considerable change. The paper goes on to discuss this spatial structure in the context of three issues that have been raised in the literature: the relationships between rates and physical distance; the role of market conditions and rates; and, the relationships between rates and economic development. From this examination, questions are raised involving long held assumptions about distance and rates, competition and pricing, and rates and economic development.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 it