Interpreting Economic Impact Analysis
Net or Gross Impacts It is worth noting that many reports focus on TOTAL spending in the area by all visitors to the attraction, whereas in this report we have considered only that part of total spending which would not have occurred in the absence of the reserve. Had we taken the alternative approach, our results would have been almost twice as large7.
Choice of Study area The results of an economic impact analysis depend on the size of the area of study chosen, and the location in which the impacts are being
measured. District of
In this study we activities rising
consider the economic impact on Rodney
choice of geographic boundary reflected what was believed to be most relevant boundary from the perspective of those who interested in or concerned about the reserve, that is, the impact on local economy. The choice of study area plays a significant role in
the are the the
final figures obtained.
The examples below
comparing this study at Leigh to the previous
illustrate this point analysis conducted
Fiordland National Park (Butcher 2006).
Effects of Study Area Size on Impacts The economics of some systems studied may be such that the all the direct impact occurs within the study area. This is not the case for the marine reserve at Leigh, where many of the economic impacts associated with the marine reserve occur outside the Rodney district.
A key component of this study was to assess how much money was spent in Rodney by visitors due to the existence of the marine reserve. It was not an objective of the study to consider spending outside of Rodney due to the marine reserve. Some 58% of visitors to the reserve were day visitors. Although not recorded directly, it was noted that a number of these day visitors bring a picnic lunch from Auckland; most of these visitors also fill their vehicle with petrol in Auckland. A significant proportion of overnight visitors come to Rodney with food, particularly those camping (43 % of overnight visitors) and staying at private accommodation (33 % of overnight visitors). In contrast the Fiordland study area included Queenstown-Lakes District and all of Southland District in its study area. This larger study area included towns large enough to have supermarkets and large petrol stations, hence the proportion of spend outside the region associated with the average visit to Fiordland would have been considerably less than for
Total direct spending in the district by visitor to the reserve was estimated to be $23.3 million, but only $12.1 million of this was attributed to the reserve. The balance would have occurred even if the reserve did not exist.