WTP to avoid advisory sites ~$72/quarter; $87 in summer. Full disclosure generates $3.4M in aggregated annual welfare benefits.

Survey covering contributions of mobility data to travel behavior, labor markets, social interactions, and health outcomes. Addresses measurement errors, sampling biases, and privacy trade-offs.

From 70M+ outdoor trips, communities of color, rural areas, and disadvantaged groups are significantly underrepresented in water-based recreation. Native Americans travel 3–5× longer distances.

20% persistent decline in Norwegian fresh salmon imports. "Political hedging" effect: 20% reduction in max import share from any single country three years post-sanction.

On high-tide flood days, visits decrease 5%. Each additional HTF day/year reduces rents 0.25%. Lower-bound annual cost of Presidential Disaster Declaration floods: $4 billion.

First nationwide mobility-based assessment of wildfire smoke and outdoor recreation. Each additional smoke day cuts visits 13%+, with smoke-sourced PM2.5 reducing visits nearly 4x more than an equivalent increase from temperature inversions. Effects are largest at non-water sites and weakest at national parks, where trip flexibility is lower. Valuing lost visits conservatively at $30/person-day, wildfire smoke costs $8.0B/year in foregone recreational welfare.

Using GPS mobility data from Texas family care clinics (2021–2022), SB 8 increased administrative demands on day-shift practitioners (+8.74 visits/month) while urban patients visited more but spent less time per visit. Rural and suburban patient visits stagnated, highlighting how restrictive abortion legislation disrupts healthcare access for underserved communities.

A one-decibel increase in annual day-night sound levels reduces housing prices 0.6–1.0%. WTP for quiet is heterogeneous across income and race.

Using anonymized mobile device data on ~22 million residents visiting 30,000 water recreation sites (2018–2022), recreators are willing to pay $8.20/trip for a one-meter increase in Secchi depth. Improving all sites to the cleanest observed would yield ~$56.3B in annual benefits.