What proxies to use for flow-through effects?

Abstract

When assessing altruistic interventions from a long-run perspective, particularly ones which do not act directly on the long-run (like averting human extinction) assessing flow-through effects is essential. In this post I raise some possible metrics to use in assessing flow-through effects. The causal relationships between them are unclear, and exogenous interventions to boost a metric may break correlations with other outcomes: they are intended as a set of candidates to reference in later discussion. Additional candidates are welcome in the comments.