# Weighting of impacts {% hint style="info" %} This page describes how Upright weights impacts. The rationale and principles of net impact are discussed [here](https://docs.uprightplatform.com/methodology/net-impact/broken-reference). {% endhint %} To compare diverse impacts — like the harm caused by an emitted CO2e ton compared to the value of a disability-adjusted life year — they need to be weighted relative to each other. Many different weighting methods have been proposed in [literature](https://backend.orbit.dtu.dk/ws/files/128949234/Pizzol_et_al_2016_Normalisation_and_Weighting_LCA_quo_vadis_IJLCA_preprint.pdf), with the most popular ones being monetary weighting, equal weighting, panel-based weighting, and distance-to-target weighting. Upright uses monetary weighting, similar to the [Harvard Impact-Weighted Accounts Framework](https://www.hbs.edu/impact-weighted-accounts/Pages/default.aspx) and the [Value Balancing Alliance](https://www.value-balancing.com/). In monetary weighting, measured impacts are converted to monetary terms before they are compared. ## Upright's approach to monetization Upright’s impact monetization follows the general principles of monetary valuation and impact aggregation defined in[ ISO 14044:2006](https://www.iso.org/standard/38498.html) (LCA standard), LCA literature, and[ ISO 14008:2019](https://www.iso.org/standard/43243.html) (monetary valuation of environmental impacts). In addition, the IOOI (Input, Output, Outcome, Impact) framework is used as part of the monetary valuation process. As the Upright net impact graph includes both positive and negative impacts, as well as impacts across several different themes, Upright uses three different monetization methods to translate impacts into dollar values: 1. [IOOI (Input, Output, Outcome, Impact) analysis -based monetization](https://docs.uprightplatform.com/methodology/net-impact/weighting-of-impacts/iooi-analysis-based-monetization) 2. [Market-price-based monetization (observed preference)](https://docs.uprightplatform.com/methodology/net-impact/weighting-of-impacts/market-price-based-monetization) 3. [Opportunity-cost based monetization ](https://docs.uprightplatform.com/methodology/net-impact/weighting-of-impacts/opportunity-cost-based-monetization) {% hint style="warning" %} **Interpretation guidance: no nullification of negative impacts** The purpose of monetization is to facilitate understanding the *relative size* of impacts across different impact categories. This should not be interpreted as positive impacts **nullifying** negative impacts. Users of Upright data should remember that positive impacts never make negative impacts disappear: Upright is simply making the trade-off that is being made visible. {% endhint %} {% hint style="info" %} **No assumption of fixed values** Upright does not assume a fixed set of values. The Upright platform allows users to express their own optimization criteria, instead of assuming one fixed set of values. Furthermore, Upright always presents net impact such that benefits (positive impacts) are always shown in relation to costs (negative impacts), allowing users to apply their own value judgment. {% endhint %} ## Appendix 1: Monetization approach by impact category | Negative valence | Impact category | Positive valence | | ----------------: | :--------------------------: | ----------------- | | N/A | **Jobs** | IOOI + literature | | N/A | **Taxes** | IOOI + literature | | N/A | **Societal infrastructure** | Market price | | IOOI + literature | **Societal stability** | IOOI + literature | | IOOI + literature | **Equality & human rights** | IOOI + literature | | N/A | **Knowledge infrastructure** | Market price | | N/A | **Creating knowledge** | Market price | | IOOI + literature | **Distributing knowledge** | Market price | | Opportunity cost | **Scarce human capital** | N/A | | IOOI + literature | **Physical diseases** | IOOI + literature | | IOOI + literature | **Mental diseases** | IOOI + literature | | N/A | **Nutrition** | Market price | | IOOI + literature | **Relationships** | Market price | | IOOI + literature | **Meaning & joy** | Market price | | IOOI + literature | **GHG** | IOOI + literature | | IOOI + literature | **Non-GHG** | IOOI + literature | | Opportunity cost | **Scarce natural resources** | IOOI + literature | | IOOI + literature | **Biodiversity** | IOOI + literature | | IOOI + literature | **Waste** | IOOI + literature | ## Appendix 2: Total monetary value by impact category Per impact category, the monetary valuation methods discussed in this page result in the totals listed in the table below. Numbers are shown as **trillion USD per year**.
Negative valenceImpact categoryPositive valence
N/AJobs10.01
N/ATaxes13.40
N/ASocietal infrastructure14.26
1.75Societal stability0.67
0.39Equality & human rights0.23
N/AKnowledge infrastructure1.01
N/ACreating knowledge1.82
0.02Distributing knowledge2.43
8.32Scarce human capitalN/A
7.35Physical diseases2.97
1.51Mental diseases0.38
N/ANutrition3.64
0.34Relationships1.73
0.90Meaning & joy3.21
19.22GHG1.53
5.98Non-GHG0.69
1.84Scarce natural resources0.03
6.73Biodiversity0.06
4.20Waste0.49