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GRA · ریسک اکچوئری و کمّی

مالی فضاییجایی که سرمایه به مخاطره، مواجهه و گذار برمی‌خورد

روش‌ها و عدم قطعیت

Actuarial and Quantitative Risk compares the core methods of the field: frequency-severity models, extreme value theory, credibility, copulas and dependence, stochastic scenario generation and model validation. This page states each method’s assumptions and where it fails.

01توالی

ترتیبی که رویدادها در آن رخ می‌دهند.

  1. 01پیش‌نویسمنابع ذکرشده، برچسب‌ها درج‌شده
  2. 02وارسی شواهدهر مقدار ردیابی‌شده
  3. 03بازبینی مستقلتعارض‌های اعلام‌شده
  4. 04ویراستمنتشرشده همراه با محدودیت‌هایش
  5. 05اصلاحیهنسخه‌ای نو، نه ویرایشی بی‌صدا
03Extreme value methods in

Extreme value methods in brief.

روشفرضTypical use
Block maxima with the generalised extreme value distributionMaxima of large blocks are approximately GEVAnnual maximum floods, wind speeds
Peaks over threshold with the generalised Pareto distributionExcesses over a high threshold are approximately GPDLarge claims, operational losses
Non-stationary extreme value modelsParameters vary with covariates such as time or temperatureClimate-affected perils
Credibility theoryBlend own experience with a collectiveSparse portfolios
04فرایند

نحوهٔ اجرای فرایند.

Process explorer · Process

Methods and uncertainty: PRISMA 2020 review reporting

10 steps4 مرحله

فرایند

Methods and uncertainty: PRISMA 2020 review reporting

PRISMA 2020 is a reporting guideline for systematic reviews; the steps follow its checklist, not a mandated sequence, and no Nexus document adopts it.

  1. 01 Plan

    1. 01Registration and protocolRecord · The review teamThe guideline asks for registration details, access to the protocol and any amendments.
    2. 02Eligibility criteriaRecord · The review teamThe guideline asks for the inclusion and exclusion criteria and how studies were grouped.
  2. 02 Find and select

    1. 03Search: sources and strategiesStep · The review teamThe guideline asks for the information sources and the full search strategies. It does not fix which sources are used.
    2. 04Selection of studiesStep · The review teamThe guideline asks how studies were judged eligible, including how many reviewers screened. It does not fix the number of reviewers.
    3. 05Flow diagramسابقهThe flow diagram shows the number of records found, the number of studies included and the reasons for exclusion.
  3. 03 Analyse

    1. 06Data collectionStep · The review teamThe guideline asks how data were collected from reports and which data items were sought.
    2. 07Risk of biasStep · The review teamThe guideline asks for the methods and tools used to assess risk of bias.
    3. 08SynthesisModel · The review teamThe guideline asks for the effect measures and the synthesis methods. It does not prescribe meta-analysis.
    4. 09قطعیت شواهدStep · The review teamThe guideline asks for the methods used to assess certainty, and reports the result per outcome. It does not name a grading scale.
  4. 04 Report

    1. 10Review reportسابقهThe guideline helps authors report why the review was done, what they did and what they found.

گزارش‌هاOutline of an externally published reporting guideline, not a Nexus process and not a record of operation. PRISMA 2020 mainly covers reviews of intervention effects. No Nexus page names it. Every programme is at service level R0.

05Capital models

Standard formula versus internal model.

Standard formulas apply fixed calibrations; internal models use the firm’s own distributions and require supervisory approval. Both rest on tail estimates whose uncertainty should be shown. Topic depth at capital and solvency models.

06عدم قطعیت

How uncertainty is reported.

  1. 01

    State assumptions

    Each analysis lists its assumptions and the data it depends on.

  2. 02

    Quantify where possible

    Ranges and confidence are reported alongside central estimates.

  3. 03

    Validate and compare

    Models are checked against observations and, where possible, against other models.

  4. 04

    Publish limits

    What an analysis cannot show is stated beside what it can.

07منابع

Where this page’s references lead.

نهادها و اسنادی که این صفحه بر پایهٔ آن‌ها خوانده می‌شود. وضعیت و ویراست‌ها تغییر می‌کنند؛ هر پیوند به نهاد صادرکننده می‌رود.

08پرسش‌ها

پرسش و پاسخ.

Are the methods open?
Method descriptions are public on the STEM Commons. Code and data follow their own licences and access terms, listed in the source register.
گزارش‌هامشارکت

از این صفحه شواهد مشارکت دهید.

Reports is the Consortium’s quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.

⁨Global Risks Alliance⁩ریسک بیمه‌سنجی و کمّیروش‌ها و فنیآمادگی مالی و بیمه
ریسک بیمه‌سنجی و کمّی

یک پرسش دربارهٔ مواجهه یا سرمایه را نزد اتحاد مطرح کنید.

اطلاعات و درخواست‌ها امروز باز است. هر درخواست یک شمارهٔ پیگیری می‌گیرد و گام بعدی را مشخص می‌کند؛ درخواست‌های عضویت، پرداخت‌ها، تخصیص رایانش و ثبت‌نام‌ها تنها زمانی باز می‌شوند که تیم، شرایط و ظرفیت داوری آن‌ها فراهم باشد.