Figure 6
Substitution of Travel Time and Money Expenditures
Travel time expenditures, h/cap/d
Adjusted travel money expenditures in percentage of income
Note: Surveys with consistent methods and without obvious bias are represented with black data points. White dots indicate unknown survey methods or when only one survey was available
Sources: Table 1 for travel time budgets; OECD (various years) and U.S. Department of Commerce (various years) for money expeditures.
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