Editing Time preference (section)

=== Sub additive discounting ===
Sub additive discounting is an example of sub additive preferences, meaning that when a problem is broken down into its individual components, people assign greater weights to the components than they would to the whole. In the context of time preference, it is argued that as the interval of time is broken down into smaller and smaller partitions, discounting increases. Daniel Read found evidence of this wherein discounting was much lower when the time interval was divided into three separate parts.<ref>{{Cite journal |last=Read |first=Daniel |date=2001-07-01 |title=Is Time-Discounting Hyperbolic or Subadditive? |url=https://link.springer.com/article/10.1023/A:1011198414683 |journal=Journal of Risk and Uncertainty |language=en |volume=23 |issue=1 |pages=5–32 |doi=10.1023/A:1011198414683 |issn=1573-0476|url-access=subscription }}</ref> He argues that this responsible for the hyperbolic appearance of discount preferences.