Evidence map›Paper›PMID 41450852›Full record

ArticleFrontiers in sports and active living2025

An analysis of the market for diving certificates.

Frank Daumann, Julian Alexander Klöcker, Malte Schurade

Abstract read
In one paragraph

Article in Frontiers in sports and active living, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Frank DaumannChair of Sports Economics and Health Economics, Friedrich Schiller University Jena, Jena, Germany.
Julian Alexander KlöckerChair of Sports Economics and Health Economics, Friedrich Schiller University Jena, Jena, Germany.
Malte SchuradeChair of Sports Economics and Health Economics, Friedrich Schiller University Jena, Jena, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: The market for recreational diving certificates is characterized by a small number of global providers and standardized products. Understanding how market structure influences firm behavior and market outcomes is essential for evaluating competitiveness and potential policy interventions. This study examines the market for diving certificates through the lens of the Structure-Conduct-Performance (SCP) Paradigm. It seeks to understand the role of entry barriers and market concentration in shaping competition and performance in this niche market. Methods: The analysis examines structural conditions and resulting market outcomes by using secondary data, industry characteristics and theoretical SCP reasoning. Special attention is given to network effects, proprietary training systems and certification standardization as sources of entry barriers. Results and Conclusion: Findings indicate that competition is limited by substantial entry barriers, enabling the dominant provider, PADI, to maintain considerable market power. Despite this concentration, technical efficiency and training quality remain consistently high across providers. However, monopolistic pricing strategies lead to allocative and distributive inefficiencies. Because training quality is maintained and consumer preferences are diverse, direct regulatory intervention appears unnecessary.

Indexed as

diving certificatesmarket analysismarket concentrationSCP-paradigmSCUBA diving

Identifiers

PMID41450852
PMCPMC12727946

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.