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About loss analyses
Touchstone enables you to model catastrophic (CAT) events to estimate property and workers' compensation losses.
Marginal impact analysis
A marginal impact analysis enables you to view the effect that a specific loss results set (the target or new portfolio/contract) has on another loss results set (the reference portfolio).
Working with marginal impact analysis results
The Marginal Impact Analysis results grid displays a table for each relevant Admin Boundary-peril set that you selected.

Using Touchstone online Help
You can access the top-level or context-sensitive Touchstone online help from within the application or from the Client Portal. You can then search for content, bookmark pages, and generate output to other formats.
Import data from external sources
You can import exposure data, map layers, projects, and reinsurance packages from external sources into Touchstone databases.
Projects and exposure views
Projects are a useful way to organize your data. They contain exposure views that contain the data that you want to focus on.
Geospatial analysis
Geospatial analysis enables you to perform a deterministic risk analysis with your own view of risk on accumulations of property exposures and workers' compensation information in given areas exposed to natural and man-made catastrophes.
Exposure data validation
Verisk provides a reference containing information about Touchstone exposure data.
Data Quality analysis
The most effective way to assess and enhance portfolio-level or contract-level catastrophe exposure data is to use Touchstone's Data Quality diagnostics. These diagnostics enable you to determine the strengths and weaknesses of the exposure data you are using for analyses and supplement that data when it is missing or weak.
Hazard analysis
Hazard analysis enable you to identify the relevant catastrophe hazards for locations in your exposure data.
About loss analyses
Touchstone enables you to model catastrophic (CAT) events to estimate property and workers' compensation losses.
- About the detailed loss analysis module
  Use the detailed loss analysis module to run a detailed loss analysis on the same exposure data that you imported for catastrophe modeling.
- Loss Group analysis
  A Loss Group analysis enables you to combine two or more sets of loss results from different analyses into a single loss view, or group, which is then available for use as input to subsequent processes or analyses.
- CAT XOL analysis
  A catastrophe excess of loss reinsurance program (CAT XOL) indemnifies the ceding company for that portion of the loss that exceeds the limit of its own retention per event.
- Marginal impact analysis
  A marginal impact analysis enables you to view the effect that a specific loss results set (the target or new portfolio/contract) has on another loss results set (the reference portfolio).
  - Configuring and running a marginal impact analysis
    A marginal impact analysis enables you to view the effect that a specific loss results set (the target, or new portfolio) has on another loss results set (the reference, or base, portfolio).
  - Working with marginal impact analysis results
    The Marginal Impact Analysis results grid displays a table for each relevant Admin Boundary-peril set that you selected.
  - Reference: Marginal Impact analysis
- User model management
  Use User Model Management to build custom non-Verisk models and seamlessly integrate them into Touchstone.
- Event set management
  Your Touchstone Re installation includes event set files for each peril and region licensed by your company.
- Configuring a loss analysis with a custom model
- Analysis Settings pane (Loss)
  Use this pane to configure catastrophe analysis settings.
Reinsurance
The Reinsurance Program Manager enables you to create, import, and manage reinsurance programs.
Touchstone data export types
Touchstone enables you to export different types of data.
Activity Monitor
The Activity Monitor displays the status of all activities.
Managing data sources
Use Data Source Management to manage Touchstone databases.
User model management
Use User Model Management to build custom non-Verisk models and seamlessly integrate them into Touchstone.
Model Builder
Administration Console
User interface
Reference: Common Help topics

Working with marginal impact analysis results

The Marginal Impact Analysis results grid displays a table for each relevant Admin Boundary-peril set that you selected.

Each table displays the information on three tabs: Overview, Scenarios, and Top 10. The tabs are located at the bottom of the table.

To view marginal impact analyses results:

Open the project. Then, in the Results area of the navigation pane, click the name of the marginal impact analysis whose results you want to view.
In the Activity Monitor, highlight the marginal impact analysis whose results you want to view, make sure that the activity status is "Completed", and then click the name of the marginal impact analysis.

Overview

The Overview tab displays aggregate and occurrence results for the following information:


Type	Marginal Impact Calculation
Reference Portfolio	Portfolio
Reference Portfolio Excluding Expiring Contract(s)	Portfolio - Expiring Contracts
Excluded Contract(s)	Expiring Contracts
Target Contract	Renewing Contract
Updated Reference Portfolio	(Portfolio - Expiring Contract) + Renewing Contract
Marginal Impact	((Portfolio - Expiring Contract) + Renewing Contract) - (Portfolio)

For each type of information the Marginal Impact Results table includes the following data:

Average annual loss (AAL)
Standard deviation (SD)
Exceedance Probability (EP) points or return periods

You can filter the results based on financial perspectives, display options, and marginal impact type. Click items to select or clear them.

Scenarios

The Scenarios tab displays the same six types of information for a set of Lloyd's® Realistic Disaster Scenarios (RDS) and Extreme Disaster Scenarios (EDS) events.

Top 10

The Top 10 tab displays the top 10 marginal impact loss points sorted by absolute value. If a window was specified in the Select Base Loss Result pane, this tab displays averaged losses based on the window defined by the user.