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Report for the Rural Industries Research and Development Corporation, National Water Commission and Murray–Darling Basin Commission
by Frontier Economics in association with Tim Cummins and Associates,
Dr Alistair Watson, and Dr Elaine Barclay and Dr Ian Reeve of the Institute for Rural Futures, University of New England
September 2007
RIRDC Publication No. 07/121 RIRDC Project No FRO-1J
Summary
This report examines changes
in the Victorian Murray Valley that could be attributed to water trading.
It considers the patterns of water trade and the views of irrigators and
community members in three case study regions. In an effort to distinguish
these changes from rural change that would in any case have occurred, the
report also considers the factors that motivate decisions about trading
water.
The report is for people who want to understand how water trading is changing irrigation industries and communities. For policy makers and others with a broad interest, Part One bases its findings on observations in three of the most important water trading regions in the southern Murray–Darling Basin. For those interested in particular regions, each of these regional experiences is described in the case studies that form Part Two of the report.
Background
Water trading in Australia
has developed as a response to ‘the return of scarcity’. Competition from
other water users and the environment became apparent in the early 1980s,
at the end of a century-long drive to build dams and distribute entitlements
to use water for irrigation. With all the easy-to-construct and cost-effective
dams in south-eastern Australia already built, increased water harvesting
had run its race as a means of enabling new irrigation developments. Implementation
of a cap on diversions in 1997 then limited the amount of water available
for irrigated agriculture in the Murray–Darling Basin.
Water trading was intended to facilitate more efficient use of an increasingly scarce resource by allowing water to be moved to more productive uses. It was expected that an open and robust water market would provide numerous benefits—to individuals, communities, the environment, and the economy in general.
Nonetheless, from the beginning, a number of concerns were expressed about the economic and social impacts of water trading.
Objectives
This research report examines
evidence on the various social and economic impacts of water trading with
a view to informing policy debate. It focuses on regions where water trading
is most prevalent—the irrigation districts of Goulburn–Murray Water and
throughout the Sunraysia region on the Victorian side of the Murray.
The primary objective was to ‘ground truth’ the experience with water trading. In particular, the authors sought to quantify and report on, through detailed case studies, the actual impacts of water trading on individual water entitlement holders, industries and communities in the Murray Valley, in order to test the assumed benefits and perceived concerns arising from the trade.
It is important that individuals, communities and governments are able to differentiate between changes that are the result of allowing the movement of water and those reflecting other changes in the economy that have affected industries and communities. At present it is extremely difficult to isolate the effects of water trading from a background of drought, varying commodity markets and rural adjustment. The extent to which water trading might speed up the rate of change associated with other drivers of change is also poorly understood.
The report provides for policy makers information on the potential to redress any social, economic and financial impacts on local communities without imposing major constraints on the ability for water to be traded to its most productive use.
The insights and lessons gained from the study will contribute to the Australian Government’s Raising National Water Standards project to monitor the impacts of interstate water trading—a requirement of the National Water Commission under the National Water Initiative. Although the aim is to inform policy debate, any recommendations relating to water market policy are outside the scope of the report.
Methods used
Social information was collected
through interviews in the selected regions, involving irrigators and the
broader community.
Thirty-three farmers and 112 other community members participated. The economic information was derived from publicly available material and the authors’ own analysis.
The regional case studies are presented as Part Two of this report:
Results
In order to consider changes
that are the result of allowing water to be moved, and those reflecting
other changes in the economy that have affected industries and communities,
the report examines the following:
Size and direction
of water trading
In the past decade there
has been considerable variation in regional experiences of water trading,
in both the size and direction of water trading and the type of water being
traded—‘permanent’ water entitlements or ‘temporary’ seasonal allocations.
The dairying area of
Kerang–Cohuna was also initially a small buyer of water entitlements, but
from 1997–98 increased demand from Sunraysia, coinciding with restricted
supply from Pyramid–Boort (because annual trade out was limited to 2 per
cent of total entitlements), meant that Kerang– Cohuna became a seller
of water entitlements.
Temporary trade volumes
are generally larger than permanent trade volumes. In many regions annual
temporary trade volumes outweigh the effect of cumulative permanent trading,
and much trade occurs within areas as well as between areas.
A common and noteworthy feature of the regions studied is that there is often an offsetting element in temporary and permanent trading. Many areas made (net) purchases of water allocations while (net) selling water entitlements; other areas were (net) sellers of water allocations while (net) buying water entitlements.
The prolonged drought is possibly masking the full implications of this: a return to the seasonal rainfall patterns of the late 20th century might see much more temporary trade into areas such as Pyramid–Boort.
In the future, water that has currently been secured for maturing trees and vines in Sunraysia might not be sold on the temporary market as the water demands of these trees and vines increase.
An important point here is that, to understand the trade, permanent and temporary water trading need to be considered together. Both types of trading affect water use in a region.
Irrigators’ views on the two types of trading differ greatly A comparison of total water reallocated through trading for each of the regions shows how the often-offsetting effects of temporary and permanent trading have led to increased water for irrigation use in the Sunraysia and Rochester, Central Goulburn and Kerang–Cohuna regions, while reducing the water used in Pyramid–Boort (see the accompanying figure).
Drivers of water trading
Water trading in the Victorian
Murray Valley follows the postulations of economic theories of trade and
investment.
The trade increases different parties’ capacity to react to changes in circumstances. This report finds that water trading is a catalyst for other drivers of change in rural economies, rather than being, of itself, the primary driver of change.
There are three key drivers of water use and trading:
The history of irrigation
districts has implications for current water trading and emerging pressures.
Water trading provides a mechanism for adjusting for past decisions in
irrigation development that are no longer appropriate—such as irrigation
of unproductive land or land less suitable for irrigation or independently
irrigating small, separate blocks. In Sunraysia there is a trend away from
existing shared-channel infrastructure and towards direct river pumping
because greenfield sites offer advantages to horticultural industries,
which benefit from new irrigation layouts and economies of scale.
Dry weather has two main effects on water trading. It increases the demand for irrigation water and reduces the water supply.
With or without water trading, drought would lead to tough times and many property foreclosures. Water trading delays and prevents some of the sales by giving farmers an additional asset with which to manage debt. Trading out of dairying regions, for example, is a mechanism for clearing some of the debts accumulated from 2002–03 and, although this is perceived as detrimental to the local community, the alternative mechanism for managing this debt would have arguably been even more detrimental, with impoverished farm families, fire sales of assets and bank foreclosures.
Changes in the economic circumstances of different industries are also key drivers of water trading. Trading in northern Victoria is consistent with commodity prices and prospects. This applies to both permanent and temporary trading. For example, the 1990s saw favourable terms of trade for manufactured dairy products, and the dairy industry expanded accordingly. Trade in water has coincided with major changes in marketing arrangements for irrigated commodities (dried vine fruit and dairying), episodes of severe drought, and responses to taxation and other policy settings. The specific influence of water trading is hard to isolate from these developments. If no trading of water (separate from land) were possible, the investment, employment and regional boom observed in Sunraysia might never have occurred. Future commodity price changes will affect prospects in different industries and the pattern of water trading.
Regional experiences
Until the past three
irrigation seasons Central Goulburn had bought and sold small (net) volumes
of water entitlements. From 2003–04 to 2005–06 larger volumes of water
entitlements were traded out of the area. Many dairy farms in the area
were geared towards using more than 100 per cent of water allocations when
sales water was available. Lower allocations in recent years have therefore
meant buying water on the temporary market, supplementing feed or reducing
production. The residents of Kyabram and Tatura were aware of the effect
of the water trade on their communities, but they were more concerned about
the impact of drought and the loss of young people, who leave for better
education and career prospects and rarely return.
Since the late 1990s Kerang–Cohuna has consistently sold water entitlements and purchased water allocations. The combination of dairying and mixed farming allows for diversification between irrigation and dryland agriculture. The communities of Kerang and Cohuna fear that the current water trading trends will mean the eventual closure of the ageing irrigation infrastructure in the area.
Findings
Separating the effects of
water trading from other causes of rural change requires a counterfactual:
how would decision making and outcomes in the various regions be different
in the absence of water trading?
Economic impacts
It is difficult to untangle
the effects of water trading from the background of drought but, by considering
observed outcomes and possible actions in the absence of such trading,
the authors found the following:
It is also difficult
to separate the effects of water trading from the background of structural
adjustment, but the authors nevertheless found the following:
Because of the advantages
of developing greenfield sites and the difficulty of achieving economies
of scale as a result of the small block sizes in some irrigation districts,
new developments mainly occur outside constituted irrigation districts.
Similarly, while it is
difficult to untangle the effects of trade from the background of commodity
markets, the authors found the following:
Social impacts
Water trading can have both
positive and negative effects on local communities:
Most of the people interviewed
were strongly supportive of the principles and practice of temporary water
trading.
Trade out of a region
can lead to increased water delivery charges to remaining users (because
of stranded assets), the build-up of disease and pest plants and animals,
and depopulation.
Not only does demand
in these industries depend on whether water is moving into or out of a
region; it also depends on the types of farms between which water is moving.
Conclusions
Recommendation
When considering the impacts
of water trading, it is important to take into account both temporary and
permanent trading and to acknowledge the context of the observed changes
in water use—which is a context of rural change and structural adjustment.
Any approach implying that all impacts associated with changes in water use facilitated by trading are attributable to or caused by trading would be misleading and unhelpful for policy development.
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