By describing key events, policies, and conditions that existed before the drought, the previous two chapters provide the setting for what happened, once the rains failed in late 1991. By early 1992 the harsh reality of the combination of dwindling grain stocks, a terribly poor harvest, and a depletion of water resources had set in. Appeals for and mobilization of aid followed, as did other actions by governments. This chapter examines what forecasts were available when, and to whom. It then discusses response actions and analyzes the drought's final effects.
The first model prediction of an ENSO event was reported in the CAC's January 1991 Climate Diagnostics Bulletin. The Cane and Zebiak model run at the Lamont-Doherty Earth Observatory was noted in the bulletin as predicting a warm episode in late 1991. However, the CAC's own canonical correlation analysis (CCA) forecast indicated no anomaly significantly different from zero for the next three seasons. It was not until April 1991 that both of these models agreed that a warm episode was likely to develop in late 1991 (CAC, 1991a). By that time, the indices being monitored by the CAC (such as sea surface temperature (SST) in the central equatorial Pacific and trade wind anomalies in the Niño3 region) were interpreted as indicating that a warm event was either developing or in progress. The CAC reports repeatedly pointed to the lack of persistent enhanced convection near the dateline, a feature that generally accompanies warm episodes.
The Australian BOM did not officially acknowledge the development of a warm episode until July 1991 (BOM, 1991a). Despite a strongly negative Southern Oscillation Index (SOI) since April, the Australians were waiting for the development of warm SST anomalies in the eastern Pacific before making any statements about the potential for an ENSO event in 1991.
In August 1991 Mt. Pinatubo erupted in the Philippines, interfering with satellite readings of SST anomalies.8 Forecasters began making cautious statements about the developing ENSO episode. In the Climate Diagnostics Bulletinfor August, the CAC drew two conclusions, based on ENSO observations: (1) decreases in SST anomalies in the east and near normal winds suggested the end of a two-year weak warm episode; and (2) enhanced convection, the expansion of the warm pool in the western Pacific and a rise in virtual temperature indicated an ENSO event had been on the brink of developing for the past two years (CAC, 1991b). In other words, it was difficult to say what was happening. The Australian information coming from the BOM was equally ambiguous. In its August Seasonal Climate Outlook, the BOM stated, "The indications are at this stage that we couldbe in the developing stages of a weak El Niño episode..." (emphasis added) (BOM, 1991b:17).
Until October, most forecasters were interpreting the ENSO indices as indicative of a weak episode. The first mention of regional teleconnections associated with ENSO events came in the CAC's "ENSO Advisory" of October 10, 1991. The emphasis remained, however, on the lack of persistent enhanced convection:
It is important to note, however, that these model forecasts were surrounded by a great deal of "noise." While the models were indicating that a warm episode was developing, the indices being observed provided a picture that was far from conclusive. SST anomalies fluctuated around zero in early 1991, the SOI was negative, wind anomalies appeared inconsistently throughout the period, and so forth. Forecasters at the CAC were focused on the development of persistent enhanced convection in the Niño3 region while the Australians emphasized the development of warm SSTs in the eastern Pacific as a key indicator for concluding an ENSO event was developing. It was not until September 1991 that model output and actual observations enabled the forecasting community to agree an ENSO event was in its early stages. Information on the regional teleconnections associated with ENSO was not available from the ENSO forecasting community until October 1991.
The next question is the extent to which individuals in the SADC region had access to these forecasts. One way to assess access is to examine the mailing lists for the various publications produced by the forecasting agencies. We obtained the lists for the CAC's Climate Diagnostics Bulletinand "ENSO Advisories" dated August 1994. We assume this list is larger than it was in 1991 but it still provides an interesting picture of the distribution of ENSO information in the SADC region. Only 20 individuals in the Southern African region directly received these publications. Eight recipients were in South Africa and it is assumed that at the time of the drought, they were not sharing information with others in the SADC region. Of the twelve recipients in the SADC region, three were in the Directorate of Meteorology in Tanzania and two were at the WMO Drought Monitoring Centre in Harare, Zimbabwe. In other words, officially-distributed ENSO information in the Southern African region was extremely limited in 1991/92.
At the time of the drought, there was no formal structure or process in place in the region for disseminating what little ENSO information did come to the region. The general consensus of those working in Africa is that in 1991/92, few people aside from a small number of specialists in the region were familiar with ENSO or with ENSO's link to regional drought. That is not to say that no one in the region had ENSO information. There are isolated reports of individuals receiving and passing on ENSO information. For example, the WMO Drought Monitoring Centre in Harare included information on ENSO model predictions (received from the U.S. Climate Analysis Center) in its March 1991 Drought Monitoring Bulletin: Eastern and Southern Africa.This information was sent to government decision makers throughout the region but reportedly was not well received.
One development agency recalled having received ENSO information in mid-1991 but was unable to take any actions until African governments formally acknowledged the climate-related food security problem. Climatologists in the region who were monitoring the ENSO signal (primarily using U.S. data) generally agreed there was a problem by October/November, but it was not until the rains actually failed in December/January (and it became "clear" they were not likely to resume) that food security and government officials acknowledged the drought.
Throughout 1991, the regional food security community had been warning that food stocks in the region were precariously low and that increased imports would be needed, regardless of the result of the 1992 harvest. By November, these calls were made all the more critical as reports from the NEWUs began to indicate failing rains and poor crop conditions across the SADC region. In December and January, the SADC FSTAU presented information to regional decision makers noting not only the poor crop conditions early in the season but also that rains were unlikely to arrive later in the season in time to salvage the crops. They sounded the alarm that the SADC region was experiencing a region-wide drought and that current stocks in the region were completely inadequate to handle the pending severe food shortages and famine situation.
In March 1992, the SADC REWS estimated that the upcoming maize harvest would be forty percent of the 1991 harvest (which had been below average) and that 5.4 million tons of maize would need to be imported. This was in addition to the nearly 4 million tons of maize required to meet the shortfall in maize production that was taking place in South Africa (SADCC/REWS, 1992). The United Nation's FAO/WFP and USAID also conducted crop assessments in March 1992 and had similar distressing projections (USAID, 1992; UN FAO/WFP, 1992). Table 5.1 displays production forecasts and import needs.
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(x 1000 tonnes) |
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Angola* |
454 |
143 |
285 |
125 |
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Botswana |
15 |
24 |
240 |
15 |
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Lesotho |
81 |
47 |
297 |
75 |
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Malawi |
683 |
46 |
876 |
740 |
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Mozambique* |
226 |
41 |
1,218 |
1,140 |
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Namibia |
33 |
30 |
125 |
60 |
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Swaziland |
53 |
38 |
129 |
60 |
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Tanzania |
3,250 |
85 |
500 |
280 |
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Zambia |
572 |
36 |
970 |
820 |
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Zimbabwe |
608 |
26 |
1,41010 |
660 |
TOTAL
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5,975
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49
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6,050
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3,975
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* engaged in internal conflict
Table 5.1. SADC grain production situation--1992 (From USAID, 1992).
In 1991, the rains came in October but had tapered off by early December. By Christmas, is was obvious the maize crops were experiencing moisture stress. The regional Drought Monitoring Centre in Harare reported that for the period November 1991-January 1992, all of Botswana, most of Zimbabwe, southern, central and part of northern Mozambique, southern and parts of eastern Malawi, northern and parts of western Zambia, central, southern and part of northern Tanzania, Swaziland and Lesotho received less than 75% of annual rainfall (Figure 5.1) (DMC, January 1992).

Hope remained, however, that the rains would resume in January and that the crop would not be a total loss. This is a common response in the face of drought because of its "creeping" nature (Glantz, 1994a; Tannehill, 1947). That is, droughts develop gradually and are often difficult to recognize because the rate of change (in this case, in rainfall) is not much different from one day to the next. Over a period of time, however, the consequences of these small changes can be monumental. In January 1992, the remote sensing project of the SADC FSTAU produced images comparing the locations of the Inter-tropical Convergence Zone (ITCZ, which brings rain to the SADC region) in December 1989, 1990, and 1991. These images clearly showed that the location of the ITCZ was north of the region. SADC REWU also compared cold cloud duration (CCD) for October through mid-January of the 1991 and 1992 growing seasons. CCD is a measure of rainfall potential. These images indicated the prospects for rainfall in much of the SADC region after January were very small (Figure 5.2). This information, combined with the first predictions of a below-average harvest (SADCC/REWS, 1991), raised awareness of the regional nature of the drought.

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By December 1991, several individual governments had received information that the upcoming harvest would be below normal due to drought. Rainfall had stopped in many places and plants were experiencing moisture stress. The December reports from the NEWUs noted failed rains and poor crop conditions. The REWU compiled these reports and published its December Quarterly Food Security Bulletinin late January 1992. Its release coincided with the SADC Annual Consultative Conference being held in Maputo, Mozambique. The report predicted a below-average maize harvest region-wide. Ministers attending the conference were also presented with remote sensing images showing the location of the ITCZ for October-December 1989, 1990, and 1991. These images clearly showed that the ITCZ was north of the region and that the prospects for rain from January on were very low.
These pieces of information placed the drought and food security situation in a regional context. At the Maputo meeting, the SADC ministers directed the SADC Food Security Sector Coordinator to consult closely with member states to assess the extent of food shortages and to devise a common strategy. The ministers also directed the Food Security Sector Coordinator to convene a donor's conference if deemed necessary (SADC/FSTAU, 1993). By this time, the effects of the drought were also becoming apparent on the ground. Some states in the region were able to secure commercial shipments of maize relatively quickly. For example, by early 1992, Zimbabwe and Zambia had mobilized imports from the RSA, the U.S. and Argentina (SADC/FSTAU, 1993). SADC REWS began a program of conducting rapid assessments of food availability and needs for the upcoming year (Rook, 1994).
By March 1992, regional grain stocks totalled 826,000 metric tons, or about 3 weeks of normal consumption (SADC/FSTAU, 1993). On March 9, SADC REWS issued a detailed report on the size of the upcoming harvest and anticipated regional import needs. They estimated the harvest would be only half of normal and that 7 million tonnes of cereal would need to be imported (SADCC/REWS, 1992). Also in March, UN FAO/WFP as well as USAID sent missions to the SADC region to confirm the severity of the drought and to confirm the food shortfall estimates. FAO/WFP worked closely with REWS and relied a great deal on the information provided by the NEWUs on crop conditions. Both FSTAU and WFP recognized the need (from a political standpoint) of having an independent, outside assessment to increase donor confidence in the estimates. In contrast, the purpose of the USAID mission was to conduct its own assessment of the situation in order to make decisions about how to allocate USAID resources.
Also in March, the WFP conducted a rapid assessment of the regional transport system to determine its capacity to handle the large increase in imports. This led to the establishment of a Logistics Advisory Centre, located in Harare, to coordinate food relief shipments.
In April, the FSTAU organized a meeting in Lusaka, Zambia of SADC ministers of agriculture and transport in order to discuss regional arrangements for drought relief. The ministers established a regional drought task force, proposed the establishment of a Logistics Advisory Centre, and agreed to approach the international community for assistance. Shortly thereafter, FSTAU began discussions with the UN Department of Humanitarian Affairs (UNDHA) on the issuance of a worldwide appeal. The Drought Emergency in Southern Africa (DESA) appeal was issued on 26 May 1992 and included a request from SADC countries for 4.1 million metric tonnes of food aid.11 A donor pledging conference was held in Geneva on June 1-2, where over US$500 million was pledged for Southern African drought relief.12
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3 million tonne grain shortfall for SADC region predicted for 1991/92 mkt. year - based on current grain stocks/harvest |
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GMB budgeted for maize to cover pre-harvest gap |
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NEWU predicts zero closing stock of maize with GMB (by mkt. year end) due to poor harvest |
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GMB officials went to RSA and arranged contract for 100,000 tonnes of maize |
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NEWU drought forecast issued: warned of less than adequate stocks for Jan./Feb., and impending drought |
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tentative assessment of upcoming low grain harvest -- based on lack of rains |
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rains failed (preventing maize tassel stage) |
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appeals for emergency maize shipments |
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national drought disaster declared |
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SADC REWS issues detailed forecast of upcoming harvest, having identified drought's magnitude -- regional import needs defined |
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official regional appeal made for donor assistance at Geneva pledging conference |
Table 5.2. Key events in Zimbabwe's drought response. (From GMB, 1990, 1991, 1992; SADCC/REWS, 1991, 1992; SADC/FSTAU, 1993).
In the meantime, in July, Zimbabwe's NEWU predicted a closing stock of zero by the marketing year's end (31 March 1992). At that time, very little, if any, concern was given to the possibility of regional drought, and when the long rains failed to materialize, the government was unprepared for a region-wide drought (i.e., having to source maize from outside Southern Africa). Later in 1991, driven by concern that regional stocks would not last until the next harvest, officials with SADC REWU tried to persuade the Zimbabwean government to halt its exports and make arrangements for imports. Because this was contrary to standard operating procedure in Zimbabwe, this advice was not well-received and Zimbabwe continued its export program.
Once the rainfall situation became clearer, some Zimbabwean officials felt the drought would not be region-wide, and that reserves could always be acquired from RSA. However, as everyone was soon to discover, RSA's maize also withered in the fields in 1991/92. Prior to the drought's onset, ENSO was not seriously considered within the region as a causal (forcing) factor.
By December 1991, Zimbabwe's GMB had signed a contract to import 100,000 tons of maize from South Africa. This was to cover the expected shortfall before the April harvest due to the poor 1990/91 crop. The UN FAO estimated that in-country stocks were sufficient to meet domestic needs only until mid-January (UN FAO/GIEWS, 1991). In the meantime, Zimbabwe continued to honor its export contracts, primarily for triangular transactions14 to other countries in the region. President Mugabe declared the drought a national disaster on 6 March 1992. By April, Zimbabwe had established an inter-ministerial drought task force to be led by the Vice President.
The imports from South Africa were delayed by the slow approval process for the needed foreign exchange. Along with an order of white maize from Argentina, they were the first commercial imports of what totalled over two million tonnes during 1992/93. Once the severity of the drought was firmly established, and an official emergency declared (6 March 1992), the aid process began. By the time SADC submitted its official regional appeal for assistance in June 1992, Zimbabwe had already imported almost 400,000 tonnes of maize. These commercial imports, which came from South Africa, Argentina, the U.S., Canada, and Mexico, were vital to sustain necessary food supplies for Zimbabwe's population. The lead time needed to mobilize these commercial imports was as short as two months, providing a bridge until aid shipments began to arrive.
Of Zimbabwe's total imports during the drought, 59 percent were direct commercial purchases. Existing foreign exchange reserves and financial contributions from donors for balance of payment support made this possible. The GOZ acquired loans for 33 percent of the imports, while grants and aid covered the remaining 8 percent. Significant amounts of donated food and other supplies began to arrive in September, taking the six-plus months lead time typical for such aid shipments. Total maize imports for the entire drought period totalled 2,190,000 tonnes. Of this amount, only 272,000 tonnes was white maize (the preferred maize variety in Southern Africa), because yellow maize is the variety that is predominantly traded on world markets.
The economic impacts of the 1991/92 drought were generally described in Chapter 3. They ranged across entire economies, adversely affecting water-dependent industries like hydroelectric power production and cotton and sugar processing, and individual farmers, and governments' fiscal budgets alike. Food prices were driven up and many families could no longer afford to send their children to school or obtain critical health services. All sectors watched as investment in upgraded and improved technology was wiped away by the new demands that the drought had placed on available financial and economic resources.
Very few other ESAP steps were taken at this time, because of the combination of "bureaucratic inertia," opposition by entrenched civil servants, and the drought. The most basic of ESAP objectives, a decrease in public expenditures, was not, nor could be seriously pursued (Skalnes, 1992).
In fact, the drought introduced forces that conflicted directly with ESAP goals. The GOZ incurred greater losses on the part of its parastatal Agricultural Finance Corporation (AFC), GMB, and National Railways of Zimbabwe (NRZ) -- major players in the national response to the drought (Benson and Clay, 1994). There was pressure on the government to increase maize producer prices in order to encourage the marketing of any on-farm stored maize. The budget had to bear these increased expenditures.
Maize producer prices were doubled from Z$270 to Z$550 per tonne in February 1992 (Sachikonye, 1992). Maize imports cost as much as four times the subsidized price that the government sold them to industrial millers for. This cost the GOZ approximately US$300 million, or 11 percent of GDP for 1992/93 (Jayne and Rukuni, 1994). The drought also created a wider gap between domestic maize prices and those found in neighboring countries, forcing the decision to eliminate consumer maize meal subsidies. The chain reaction was an increase in roller meal and super-refined meal prices, of 20 and 80 percent, respectively (Sachikonye, 1992). Inflation rose to 30 percent during the first-half of 1992.
When meeting in Paris in February 1992 to review Zimbabwe's ESAP, the World Bank did not have the drought's impact on the agenda. In the meantime, the GOZ had to line up import contracts just to see it through March. The U. S. delegation insisted on a discussion of this issue. After appeals by UNDHA and SADC, the World Bank gave large credits for drought recovery. In July, the IMF relaxed ESAP target dates and a large credit was made available. In September, another credit for food imports was approved (MSI, 1994).
In a final tally, the 1.85 million tonnes of grain imported by the GMB during 1992/93 cost Z$1200 per tonne landed in-country. The GMB's trading account for 1992/93 shows a total trading deficit increase from Z$ 6 billion in the previous year to $Z 759 billion. The subsidy to millers amounted to Z$ 562 per tonne. The differential between the landed import price of maize ($Z 1,217) and the local selling price (Z$ 1,070) created another GOZ-absorbed subsidy of Z$ 147 per tonne, bringing the total outlays for the maize importing and distribution effort during the drought to Z$ 709 (US$ 142) per tonne (GMB, 1993).
A reduction in demand hit all economic sectors, including agricultural inputs and basic consumer goods. This arose in part from reduced incomes because of the drought, but also from the ESAP's depressed effects on the country's economy because of an increased availability of imported goods (Benson and Clay, 1994). The Zimbabwean Stock Market declined 62 percent in value during 1992, and the country's GDP fell nine percent. See Table 5.3 for economic indicator data.
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Table 5.3 Zimbabwe's economic indicators (IMF, 1995; World Bank, 1995).
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Table 5.4 Zambia's economic indicators (IMF, 1995; World Bank, 1995).
The 1991/92 drought in Zambia provides a good example of how widespread and large the economic effects of drought can be. Decreased production in Zambia's two most important non-food crops significantly affected both the agricultural and manufacturing sectors. Reduced cotton production translated into lower processed output, and a one percent decline in total manufacturing output. Less oil was produced and available domestically, because of the reduced oilseed crop. This caused another half percent decline in manufactured output. A greater demand for diesel oil to fuel the road transport of food supplies (an important supplement to rail transport) also had an adverse economic effect.
One of Zambia's non-traditional exports is electricity, which is produced at Kafue Gorge, Kariba, and Victoria Falls. Low water levels led to earnings of only 23 percent of the normal for this sector. In addition, Zambia was forced to turn to Zaire for electricity imports, a cost that included expenditures to improve electric power lines. Combining these impacts with the depressed agricultural sector output (which was down 27 percent), total GDP in Zambia fell 6 percent after the drought.
The drought-induced food shortage also led to far greater use of road transport, and hence diesel oil, than in a non-drought year. This had direct implications for foreign exchange reserves and the budget deficit. The financial sector did not go unscathed; it suffered from the inability of farmers to repay their loans. Banks, as a result, had very little reserve to loan for the new crop season. Outside of donor assistance, the only alternative was for the Bank of Zambia to extend loans through the creation of new money. Even the commercial sector suffered from the drought to the extent that its future development potential, once hoped as a major cure for Zambia's economic woes, has been threatened. The drought contributed to the erosion of capital and to the concomitant inability to invest.
Rural incomes were greatly reduced, especially among small-scale farmers who had been selling extra maize as a cash crop. These farmers received as much as 90 percent of their cash income from maize sales. Many commercial farmers' incomes also declined because, even though this sector is more diversified, there was a large investment in maize for the 1991/92 growing season (a result of higher producer prices). Farmers with large livestock herds were also severely affected (GRZ, 1992).
The urgent need to import maize supplies for the entire region led to price increases, particularly in the cost of land transport. Wages lost value in real terms after inflation took off during 1992. In November of 1991, the lowest paid public service worker earned K5000 per month ($US 80), a time when mealie meal cost K250 per 25 kg bag. A year later, the same worker's salary was K11,000 ($US 70), but mealie meal had jumped to K2000 per bag, or 930 percent. The government also raised taxes to grapple with increased expenditures and budget deficit problems.
The cause and effect of staple food price increases during and after drought can be difficult to order. When maize is donated, for example, a government must decide what to charge for it. In Zambia's case, the government felt pressures to charge "realistic" rather than subsidized prices, to avoid undercutting the local market, to cover drought-relief activities, and to help finance the upcoming season. This introduced a form of inflationary pressure on food prices.
Zambia faced a pre-drought budget deficit of K6.3 billion, which more than doubled to K13.73 billion after the drought. Greater food, electricity, and other drought-related imports contributed to the worsening deficit, along with higher mealie meal subsidies (to absorb higher into-mill/maize handling costs) and reduced (non-tradable) export earnings from cotton and electricity. Of the total value of Zambia's imports, 90 percent was paid in foreign currency.
Regional and national responses to the actual drought situation were initiated once it became clear that the rains had indeed failed, the severity of crop damage had been observed, and evidence that the rains were unlikely to return was presented. Regional famine was averted, but individual countries experienced severe food shortages and significant economic impacts due to the drought. The relatively slow build-up of events, as they were, does show us that even an earlier, credible and accurate ENSO drought forecast would not necessarily have altered the SADC region's precarious food supply position.
8. The CAC's August 13 "ENSO Advisory" noted positive SST anomalies in the east, low-level westerly anomalies and deepening thermocline in the east but cautioned that the Mt. Pinatubo eruption could biass SST readings by as much as 2 deg C.
9. Based on average production over the past five years.
10. Government had already approved 554,000 tonnes of commercial maize imports, including 100,000 tonnes from South Africa for the 1991/92 marketing year.
11. By April, SADC states had arranged or were in the process of arranging for the commmercial import of 1.9 million metric tons of cereals (SADC/FSTAU, 1993).
12. It is important to note, however, that pledges do not always materialize in the form of concrete resources.
13. Althought it acknowledged the drought emergency relatively early, the Government of Malawi did not make its first order for commercial maize until July (MSI 1994).
14. Triangular transactions are indirect purchases, typically made by donors who transfer the purchased grain to a third country.
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