Water is increasingly becoming a
limiting factor for sustainable economic growth and
development in many countries. Its allocation has
significant impacts on overall... Show More +
economic efficiency,
particularly with growing physical scarcity in certain
regions. Greater water supply variability further increases
vulnerability in affected regions. Water also has become a
strategic resource involving conflicts among those who may
be affected differently by various policies. This paper
analyzes various policy interventions aimed at improving
water allocation decisions, using a novel approach that
incorporates macro and micro level considerations in a
unified analytical framework. The framework facilitates
assessment of various linkages among policies and their
impacts within individual sectors and economy-wide. Drawing
on country based studies in Morocco, South Africa, Turkey,
and Mexico, the analysis reveals difficult tradeoffs among
various policy objectives, including priorities placed on
different sectors, regional advantages, and general economic
efficiency gains versus broader social impacts. The
comparison of policy impacts demonstrates the usefulness of
the framework in information that policy makers can use to
rank the policy interventions according to the emphasis
placed on different policy objectives. The paper also
compares approaches used in other studies that apply
computable general equilibrium models in various contexts of
water, environment and agriculture. Show Less -
Type: Policy Research Working Paper
Report#: WPS6068
Date: May 1, 2012
Author:
Dinar, Ariel
This paper uses a case study approach to
explore the effects of NAFTA and GATT membership on
innovation and trade in the Mexican soaps, detergents, and
surfactants (SDS)... Show More +
industry. Several basic findings emerge.
First, the most fundamental effect of the NAFTA and the GATT
on the SDS industry was to help induce Wal-Mart to enter
Mexico. Once there, Walmex fundamentally changed the retail
sector, forcing SDS firms to cut their profit margins and
innovate. Those unable to respond to this new environment
tended to lose market share and, in some cases, disappear
altogether. Second, partly in response to Walmex, many
Mexican producers logged impressive efficiency gains during
the previous decade. These gains came both from
labor-shedding and from innovation, which in turn was fueled
by innovative input suppliers and by multinationals bringing
new products and processes from their headquarters to
Mexico. Finally, although Mexican detergent exports captured
an increasing share of the U.S. detergent market over the
past decade, Mexican sales in the U.S. were inhibited by a
combination of excessive shipping delays at the border and
artificially high input prices (due to Mexican protection of
domestic caustic soda suppliers). They were also held back
by the major re-tooling costs that Mexican producers would
have had to incur to establish brand recognition among
non-Latin consumers and to comply with zero phosphate laws
in many regions of the U.S. Show Less -
Type: Policy Research Working Paper
Report#: WPS3999
Date: August 1, 2006
Author:
Javorcik, Beata ;
Tybout, James ;
Keller, Wolfgang
The literature on regional integration
agreements (RIAs) is vast and deals with political,
economic, and political economy issues. The literature on
the economics of... Show More +
RIAs deals mostly with static effects, and
concludes that these effects are, in general, ambiguous. So
far there has been no empirical analysis of the dynamic
effects of RIAs based on their impact on technology
diffusion from partner and nonpartner countries. Schiff and
Wang's paper is a first attempt in this direction. The
authors examine the impact of the North America Free Trade
Agreement (NAFTA) on total factor productivity in Mexico
through its impact on trade-related technology transfers
from OECD countries. They estimate trade-related technology
diffusion by using a measure of trade-related foreign
research and development (R&D). Foreign R&D is
constructed based on industry-specific R&D in the OECD,
OECD-Mexico trade patterns, and input-output relations in
Mexico. The authors find that: Mexico's trade with its
NAFTA partners had a large and significant impact on
Mexico's total factor productivity, while trade with
the rest of the OECD did not. Simulating the impact of NAFTA
has led to a permanent increase in total factor productivity
in Mexico's manufacturing sector of between 5.5 percent
and 7.5 percent and to some convergence with the economies
of Canada and the United States. Show Less -
Type: Policy Research Working Paper
Report#: WPS3132
Date: September 30, 2003
Author:
Schiff, Maurice ;
Wang, Yanling
The case in Mexico City offered an
opportunity to observe the advantages, and disadvantages of
gradualist reform. Unfortunately, the authors find that the
long-term... Show More +
nature of an incremental approach does not match
well with the generally shorter-term horizons of elected
politicians. Difficult decisions in implementation are left
to later years, which pushes potentially unpopular actions
onto the shoulders of future administrations, while allowing
the current government to claim credit for instituting
reform. The reform planned - and implemented - was not
designed to tackle the city's most serious water
problems, including over-consumption, and waste. And reform
did little to change residential consumers' incentives
to conserve water. Over-exploitation of the aquifer has been
a problem since at least the 1930s. Mexico City is built on
a series of drained lakebeds, and the land is soft, and
prone to settling, or subsiding, as the aquifer is depleted.
Several areas of the city center have sunk by over two
meters in the past decade alone. And by virtue of its
location, and elevation, the city's alternative water
sources are expensive. The need for change is stark, but the
power to undertake reform to tackle broad problems of
resource management in the city, and surrounding areas, lies
outside the jurisdiction of the Federal District, with the
federal government. Such external funding of major supply
projects, weakens the incentives for conservation. Reform
reduced the increasing rate of over-exploitation of the
aquifer, but partly by simply failing to meet demand. Reform
to provide more equitable, and sustainable water delivery,
must focus on improving the efficiency of operations, on
substantially reforming the way water resources are priced,
and allocated, and, on the design, management, and pricing
of wastewater services. Federal subsidies for new production
must be reduced, prices for system operators, and consumers
must rise, and more must be invested in the treatment, and
storage of wastewater - all of which requires strong
political leadership. Show Less -
Type: Policy Research Working Paper
Report#: WPS2654
Date: August 31, 2001
Author:
Haggarty, Luke ;
Brook, Penelope ;
Zuluaga, Ana Maria
Critics of free trade have raised the
specter of a "race to the bottom," in which
environmental standards collapse because polluters threaten
to relocate to "pollution... Show More +
havens" in the
developing world. Proponents of this view advocate high,
globally uniform standards enforced by punitive trade
measures that neutralize the cost advantage of would-be
pollution havens. To test the race-to-the-bottom model, the
author analyzes recent air quality trends in the United
States and in Brazil, China, and Mexico, the three largest
recipients of foreign investment in the developing world.
The evidence clearly contradicts the model's central
prediction. The most dangerous form of air
pollution--suspended particulate matter--has actually
declined in major cities in all four countries during the
era of globalization. Citing recent research, the author
argues that the race-to-the-bottom model is flawed because
its basic assumptions misrepresent the political economy of
pollution control in developing countries. He proposes a
more realistic model, in which low-income societies serve
their own long-run interests by reducing pollution. He
concludes with recommendations for international assistance
measures that can improve environmental quality without
counterproductive enforcement of uniform standards and trade sanctions. Show Less -
Type: Policy Research Working Paper
Report#: WPS2524
Date: January 31, 2001
Author:
Wheeler,David R.
The natural gas industry combines
activities with natural monopoly characterisitics with those
that are potentially competitive. Pipeline transport and
distribution,... Show More +
which have natural monopoly characterisitcs,
require regulation of price and non-price behavior.
Production is a contestable activity, but in a few countries
(including Mexico) it remains a state monopoly. Gas
marketing is also contestable, but the presence of a
dominant, upstream, vertically integrated incumbent may pose
significant barriers to entry. Market architecture
decisions--such as horizontal structure, regional
development, and the degree of vertical integration--are
also crucial. The authors report that Mexico has undertaken
structural reform in the energy sector more slowly than many
other countries, but it has introduced changes to attract
private investment in natural gas transport and
distribution. These changes were a response to the rapid
growth in demand for natural gas (about 10 percent a year)
in Mexico, which was in turn a response to economic
development and the enforcement of environmental
regulations. The new regulatory framework provides
incentives for firms to invest and operate efficiently and
to bear much much of the risk associated with new projects.
It also protects captive consumers and improves general
economic welfare. The continued vertical integration of the
state-owned company Pemex and its statutory monopoly in
domestic production posed a challenge to regulators. Their
response in liberalizing trade, setting first-hand sales
prices, and regulating natural gas distribution makes the
Mexican case an interesting example of regulatory design. As
the first phase of investment mobilization and competition
for the market in Mexican distribution project concludes,
remaining challenges include consistently and transparently
enforcing regulations, coordinating tasks among government
agencies, and ensuring expansion of gas transport services
and domestic production. A key challenge in the near term
will be fostering competition in the market. In
strengthening the role of market forces, one issue is
Pemex's discretionary discounts on domestic gas and
access to transport services, made possible by its monopoly
in domestic production and marketing activities and its
overwhelming dominance in transport. The main instrument
available to the regulator is proscribing Pemex contract
pricing, but more durable and tractable instruments should
be considered. Show Less -
Type: Policy Research Working Paper
Report#: WPS2537
Date: January 31, 2001
Author:
Rosellon, Juan ;
Halpern, Jonathan
Survey evidence from Mexico reveals
large observed differences in pollution from factories in
the same industry, or the same area, or operating under the
same regulatory... Show More +
regime. Many factories have adopted
significant measures for pollution control and are in
compliance with environmental regulations, but some have
made little or no such effort. For lack of data, systematic
research on the reasons behind such variations in
plant-level environmental performance (especially on how
impediments to pollution control affect plant behavior) is
rare, even in industrial societies. Drawing on a recent
plant-level survey of Mexican factories, the author
identifies a number of performance variables characteristic
of compliant and non-compliant plants, as well as factors
that no-compliant plants perceive to be obstacles to
pollution control. Non-compliant firms made less effort than
compliant firms to change materials, used, to change
production processes, or to install end-of-pipe treatment
equipment. They had significantly fewer programs to train
their general workers in environmental responsibilities.
They lagged behind in environmental training, waste
management, and transportation training. They received less
technical training, especially about the environment,
environmental policy and administration, and clean
technology and audits. Responses about obstacles to better
environmental performance included scarcity of training
resources, government bureaucracy, high interest rates, and
Mexico's lack of an environmental protection culture.
Respondents said that senior managers did not emphasize the
environment, assigned more priority to economic
considerations, and were not trained in the subject. Most
important, however, little information was available about
Mexico's environmental policy. These findings suggest
the importance of technical assistance - especially training
and information. In Mexico, the information gap on policy is
a major problem. Mexican environmental agencies should
invest more in technical assistance and environmental
training targeted to non-compliant enterprises.
Environmental education, especially of senior managers,
could significantly improve pollution control. Maintaining
close contact with non-compliant firms, designing programs
targeted to them, and pursuing them systemically should
increase their responsiveness to regulations. Show Less -
Type: Policy Research Working Paper
Report#: WPS2245
Date: November 30, 1999
Author:
Dasgupta, Susmita
This cross-country evaluation of
institutional responses to problems in the water sector
shows that changes in the nature of water problems have
changed the development... Show More +
paradigm underlying water
institutions. There is increasing recognition of how
decentralized allocation mechanisms can influence economic
forces and stakeholders in water sector decisions. As the
notion of water provision as a public good and welfare
activity gives way to the concept of water as an economic
good and an input of economic activity, there is more policy
concern about efficient and equitable use, cost recovery,
and financial viability. All of the countries the authors
studied (Australia, Brazil, Chile, China, India, Israel,
Mexico, Morocco, South Africa, Spain, and Sri Lanka) are
committed to changing the policies and institutions that
have caused the present water sector crisis, but they are at
different stages of institutional reform. Among cases
discussed, Australia and Chile (and, in the United States,
California and Colorado) are at an advanced (though not
ideal) stage of institutional change. Israel, with its
technologically advanced water sector, could well be ahead
of them when the proposal to allow water transfers and
decentralize water development and distribution systems
takes practical shape. Tentative conclusions reached by the
authors are: 1) Attempts to fix isolated parts of the water
sector will influence other dimensions but an integrated
approach is best. At the heart of such an approach should be
institutional changes aimed at modernizing and strengthening
legal, policy, and administrative arrangements for the whole
sector. 2) Institutional changes taking place everywhere
suggest that the opportunity costs of (and net gain from)
institutional change is not uniform, suggesting that
opportunity and transaction costs vary. 3) Funding agencies
should focus efforts and resources in countries, areas, and
subsectors that already have enough critical mass in
institution-building to ensure success and lower transaction
costs. 4) The sequence and pace of reform should reflect
realities of scale economies and political pressures from
reform constituencies. When possible, political economy
should be exploited to move reform along more quickly. Show Less -
Type: Policy Research Working Paper
Report#: WPS2045
Date: January 31, 1999
Author:
Saleth, R. Maria ;
Dinar, Ariel
The authors use new data from Brazil and
Mexico to analyze relationships linking economic
development, the size distribution of manufacturing plants,
and exposure to... Show More +
industrial pollution. For lack of data,
prior work in this field has been limited largely to water
pollution and medium-size plants. This study examines air
pollution and encompasses small plants (with 1 to 20
employees) as well as medium-size and large plants. Four
main questions are addressed (with answers from plant-level
data): a) Are small plants more pollution-intensive than
large facilities? Clearly, yes. b) Are there proportionately
more small plants in low-income regions? The answer is yes,
in thousands of Brazilian municipalities. Small plants
dominate poor regions and are a relatively low source of
employment in high-income areas. c) Is industry more
pollution-intensive in low-income regions? In Brazil, yes.
For each municipality, the authors estimate the share of the
six most pollution-intensive ("dirty") sectors in
total industrial activity. They find that the dirty-sector
share declines continuously with increases in municipality
income per capita. d) Do poor areas suffer more than wealthy
areas from industrial air pollution? Paradoxically, no. The
risk of mortality from industrial air pollution is much
higher in the top two income deciles among Brazil's
municipalities and the great majority of projected deaths is
attributable to emissions from large plants.The scale of
large-plant emissions dominates all other factors.
Lower-income areas suffer much less from industrial air
pollution in Brazil, despite the greater emissions-intensity
of smaller plants and the prevalence of smaller plants in
lower income areas. Show Less -
Type: Policy Research Working Paper
Report#: WPS2029
Date: December 31, 1998
Author:
Dasgupta, Susmita ;
Lucas, Robert E. B. ;
Wheeler,David R.
Using new survey evidence, the authors
analyze the effects of regulation, plant-level management
policies, and plant and firm characteristics on
environmental performance... Show More +
in Mexican factories. They focus
especially on management policies: the degree of effort to
improve environmental performance and the type of management
strategy adopted. They index effort with two variables:
adoption of ISO 14000-type procedures for pollution
management and use of plant personnel for environmental
inspection and control. Proxies for strategic orientation
are two indices of mainstreaming: assigning environmental
responsibilities to general managers instead of specialized
environmental managers, and providing environmental training
for all plant employees, not just specialists. Detailed
survey data let them test the performance impact of such
factors as ownership, scale, sector, trade and other
business relationships, local regulatory enforcement, local
community pressure, management education and experience, and
workers' general education. Their findings are: 1)
Process is important. Plants that institute ISO 14000-type
internal management procedures show superior environmental
performance. 2) Mainstreaming works. Environmental
training for all plant personnel is more effective than
developing a cadre of environmental specialists, and
assigning environmental tasks to general managers is more
effective than using special environmental managers. 3)
Regulatory pressure works. Plants that have experienced
regulatory inspections and enforcement are significantly
cleaner than those that have not. 4) Public scrutiny
promotes stronger environmental policies. Publicly traded
Mexican firms are significantly cleaner than privately held
firms. 5) Size matters. Large plants in multiplant firms
are much more likely to adopt policies that improve
environmental performance. 6) OECD (Organization for
Economic Cooperation and Development) influences do not
matter. It is generally assumed that plants linked to OECD
economies show superior environmental performance, but they
find no evidence that OECD links--including multinational
ownership, trade, management training, or management
experience--affect environmental performance. 7) New
technology is not significantly cleaner. They find no
evidence that plants with newer equipment perform better
environmentally (once other factors are accounted for). 8)
Education promotes clean production. Plants with more
highly educated workers show significantly better
environmental management efforts and performance. Show Less -
Type: Policy Research Working Paper
Report#: WPS1877
Date: January 31, 1998
Author:
Dasgupta, Susmita ;
Hettige, Hemamala ;
Wheeler,David R.
Are multinationals flocking to pollution
havens in developing countries? Using data from four
developing countries (Cote d'Ivoire, Mexico, Morocco,
and Venezuela), the... Show More +
authors examine the pattern of foreign
investment. They find almost no evidence that foreign
investors are concentrated in dirty sectors. They also
examine the behavior of multinationals doing business in
these four countries, testing whether there is any tendency
for foreign firms to pollute more or less than their host
country counterparts. To do this, they use consumption of
energy and dirty fuels as a proxy for pollution intensity.
They find that foreign plants in these four developing
countries are significantly more energy-efficient and use
cleaner types of energy than their domestic counterparts.
The authors conclude with an analysis of US outbound
investment between 1982 and 1994. They reject the hypothesis
that the pattern of US foreign investment is skewed toward
industries in which the cost of pollution abatement is high. Show Less -
Type: Policy Research Working Paper
Report#: WPS1744
Date: March 31, 1997
Author:
Eskeland, Gunnar S. ;
Harrison, Ann E.
The authors report the results of a
study of Mexican farm households using 1991 survey data and
a smaller resurvey of some of the same households in 1993.
One study... Show More +
goal was to empirically examine the relationship
between assets and the output supply function. Using a
production model focusing on capital as a productive input,
they found that both the supply level and the responsiveness
(elasticities) to changing input and output prices tend to
depend on the farmer's net assets and on how productive
assets are used. Regression analysis using data from the
surveys shows that farmers who use productive assets such as
machinery tend to be positively responsive to price changes,
while those with no access to such assets are not. Another
study goal was to monitor the condition of Mexican farmers
in a rapidly changing policy environment. The 1991 survey
data suggest that farmers with more limited use of capital
inputs (low-CI) to grow principally corn and to grow fewer
crops, on average, than the others. They aso had more
problems getting credit and were less likely to use
purchased inputs, such as seeds, fertilizer, and pesticides,
or to use a tractor to prepare the soil. They tended to be
less well-educated, and their land tended to be of lower
quality. Results from the panel data showed conditions
generally improving for the average farmer in the sample
area between 1991 and 1993, during a period when
agricultural reforms were implemented. Cropping patterns
were more diversified, the average size of landholdings
increased, the average farmer received more credit (in real
terms), more farm households earned income from off-farm
work, and more farmers used purchased inputs. Asset
ownership and educational attainment also improved modestly.
The very small low-CI group in this sample fared as well as,
or better than, the other goroups. True, their level of
educational achievement fell, and fewer of them had off-farm
income than in 1991. But their use of credit, irrigation,
machinery, and purchased inputs increased more than for
other groups. The limited data are not proof of a causal
link, but the fact that the goals are being met should at
least ensure that adverse conditions are not undermining
reform. Farmers that lacked access to productive assets did
not respond as well to incentives or take advantage of the
opportunities presented by reform and may need assistance,
particularly to get access to credit markets. There may be
a good argument for decoupling income supports from price
supports for farmers, since income payments that are
independent of the vagaries of production could provide a
more stable signal of creditworthiness than price supports
do. Possibly reorienting research and extension services
more to the needs of low-CI producers could also improve the
efficiency with which the sector ajdusts to new incentives.
Hypotheses and tentative conclusions from this study will be
explored further when more data are collected in 1995. Show Less -
Type: Policy Research Working Paper
Report#: WPS1494
Date: August 31, 1995
Author:
Lopez, Ramon ;
Nash, John ;
Stanton, Julie
The lack of an appropriate regulatory
environment is a principal factor behind inadequate water
and sanitation services in many parts of Latin America.
Many governments... Show More +
recognize the need to improve cost recovery
and accountability in services - and increasingly see
private sector participation as a tool for improving
efficiency and attracting commercial sources of investment
finance. Consultants interviewed representatives of private
companies that recently contended for contracts to provide
water and sanitation services in four Latin American cities
(Buenos Aires, Caracas, Mexico City, and Santiago). These
private operators identify the regulatory conditions they
look for deciding whether to participate in a bid. On the
basis of the interviews, the authors identified nine
conditions. (1) Specify key terms and conditions of
regulation in the contract, leaving little discretionary
power to the regulating authority. In particular, specify
the key aspects of regulation (such as price, quantity, and
quality) in the contract. (2) Spell out credible procedures
for the fair resolution of disagreements about contractual
or regulatory matters. (3) Carefully specify credible
technical objectives which the contractor will be expected
to achieve under the contract. (4) See that government
tariff policies support the principle of cost recovery for
water services - and that tariff adjustment formulas
adequately reflect changes in costs, inflation, and the
exchange rate. (5) If historical collection rates do not
indicate consumers' willingness to pay for services
such as tariffs that reflect the cost of service, allow an
adequate period of time to phase in higher tariffs - and
give the operator adequate protection from nonpayers (either
the right to cut off service or recourse to another source
of payment). (6) Review public works law, contract law, and
accounting practices and, if necessary, amend them in
advance to ensure that they accommodate and protect any
long-term investments foreseen under build-own-transfer or
concession-type arrangements. (7) Eliminate unnecessary and
bureaucratic administrative requirements that make bidding
expensive. (8) Make a contract and expected profits big
enough to warrant the high fixed cost of bidding. (9)
Provide the education and outreach needed to inform
consumers and secure the support of labor interests. In
addition, the firms interviewed said that host countries
would be better able to attract private-sector providers if
they: (a) used reputable outside technical, legal, and
financial advisors; (b) allowed local and foreign banks that
finance investments to review and comment on proposed
contracts and participate in negotiations; and (c) reduced
the cost of bidding for small contracts. Show Less -
Type: Policy Research Working Paper
Report#: WPS1322
Date: July 1, 1994
Author:
Triche, Thelma ;
Apogee Research, Inc. ;
Richard, Barbara
Postwar industrialization has moved
Mexico's manufacturing industry toward more polluting
activities. Fairly independent of changes in foreign trade
policy, this process... Show More +
was induced by expansive public
investments in heavily polluting subsectors, especially
petro - and agrochemicals. Below - market pricing policies
(implicit subsidies) for petroleum fuels contributed to an
increase in industrial energy intensity -- in sharp contrast
with pervasive energy - saving transition in Organization
for Economic Cooperation and Development (OECD) countries in
the last two decades. Energy intensity in Mexican industry
increased 5.7 percent between 1970 and 1990, compared with a
decrease of 35.3 percent in OECD industry. Show Less -
Type: Policy Research Working Paper
Report#: WPS1125
Date: April 30, 1993
Author:
Kate, Adriaan Ten
The authors review the economic
principles that should guide the efficient choice of
targeted policies for environmental protection. They
recommend policy instruments... Show More +
along three dimensions: (1)
whether they use economic incentives; (2) whether they
target environmental damage directly; and (3) whether they
specify prices, quantities, or technologies. This
distinction is helpful in guiding policy choices because
many discussions in the economics literature on
environmental policies mistakenly claim advantages for
incentive-based instruments by showing, for instance, that
direct policies of this sort are less costly than indirect
non-incentive measures. After analyzing efficient responses
to the air pollution problem, the authors come up with
somewhat surprising results. For three of the cities
(Ankara, Los Angeles, and Mexico City), the efficient
instruments selected by this (admittedly limited) exercise
are similar: indirect incentive-based policies. Only
Cubatao differs in that direct non-incentive regulations are
the efficient policy choice. But choosing indirect policy
instruments is not without its problems. This category is
the broadest one. For instance, while there is only a
single direct incentive-based price instrument (emissions
taxes), several indirect incentive-based price policies
exist including taxes on inputs and on complementary and
substitute products. Indirect policies also cannot
simultaneously target the incentives to reduce waste
generation, production efficiency, and reduce output to
reduce pollution. A combination of indirect policies will
then be required to control pollution. But if the regulatory
costs of controlling additional variables are high they may
outweigh the cost of monitoring and enforcing a single
direct policy. Finally, indirect regulations may be
accompanied by perverse incentives, such as new source bias
or reduced marginal costs of polluting. Efforts to offset
these perverse incentives by regulating additional variables
may be subject to second-best problems: two regulations
with opposite results can be costlier than no regulation at
all. The main lesson the authors draw from the cases
examined: Once decisions are made - whether to concentrate
industry, to rely on private vehicles for transportation, to
subsidize a particular energy source, or to use a certain
environmental policy - they acquire a certain performance.
Capital is invested and workers are trained under the
prevailing laws, and these are costly to change. Los
Angeles cannot reverse its emphasis on the automobile;
Brazil cannot easily move its industrial center away from
Cubatao; Mexico cannot quickly reduce the concentration in
its capital city; and Turkey's development would suffer
if energy subsidies were removed abruptly. For this reason,
it is important to design policy with an eye toward
longer-run concerns. It makes sense, for example, for
cities such as Ankara to begin to enact policies to prevent
mobile source pollution from worsening over the next
decades. The authors also point out the dangers of ignoring
intermedia substitution of pollutants. In places such as
Cubatao, where air quality has been cleaned up, the
improvement may have come at the expense of water quality or
the accumulation of hazardous wastes. Show Less -
Type: Policy Research Working Paper
Report#: WPS942
Date: August 31, 1992
Author:
Levinson, Arik ;
Shetty, Sudhir
For developing countries, budget
constraints help set the agenda on mitigating environmental
damage, one of the indelible marks of our era. Political
considerations... Show More +
often dictate the measures taken. There are
no firm analytical formulas to help even environmentally
conscious policymakers rank needs and remedies. A
developing country such as Mexico - the focus of this paper
- cannot afford an in-depth study of every environmental
issue. Policymakers need to be provided with rough,
"back-of-the envelope" estimates of the economic
costs of various environmental problems. This allows them
to rank the issues and act. In this paper the author
applied existing methods to estimate the costs stemming from
different environmental problems in Mexico. Although the
examples are from Mexico, the method can be useful in other
developing countries as well. The author how creative use
of U.S. and other data can help provide simple estimates of
the likely costs of soil erosion, air pollution, mining of
underground waters, and estimates of the health effects of
water and solid waste pollution, lack of sanitation, and the
ingestion of food contaminated by polluted irrigation. The
assumptions underlying all calculations are conservative.
Some environmental damage issues, such as loss of
biodiversity, were too complex to permit quantification. Show Less -
Type: Policy Research Working Paper
Report#: WPS824
Date: January 31, 1992
Author:
Margulis, Sergio
The Mexican sugar industry operates
under strict government controls. The sugar parastatal,
AZUCAR, and other state agencies govern virturally all
aspects of pricing... Show More +
and, until recently, AZUCAR controlled
virtually all aspects of marketing. The purpose of this
study is to make transparent the main economic effects of
existing sugar policies. Three broad measures are used to
estimate the resource misallocation effects of intervention:
the nominal rate of protection, the effective rate of
assistance and the net subsidy equivalent. Theoretical
arguments are also used to demonstrate other potential
inefficiencies in resource use. To estimate the effects of
efficiency-improving policies, an economic model of Mexican
production, demand, stock demand and cane-pricing
arrangements is constructed. This model is linked to a
model of the world sugar market to evaluate the trade and
other economic opportunities which should arise from policy reforms. Show Less -
Type: Policy Research Working Paper
Report#: WPS596
Date: February 28, 1991
Author:
Borrell, Brent