Globalization and Technology:
Africa's Participation and Perspectives
Concept Paper and Research Agenda

Melvin Ayogu
andOsita Ogbu

ATPS SPECIAL PAPER SERIES NO. 1

Published by the African Technology Policy Studies Network (ATPS),
P.O. Box 10081, 00100 General Post Office, Nairobi Kenya© 2002 African Technology Policy Studies Network (ATPS)

Formatted by Magayu K.Magayu, School of Journalism, University of Nairobi
P. O. Box 30197, Nairobi, Kenya
Printed by Mung'etho Consult, P. O. Box 57227, Nairobi

ISBN NO. 9966-916-39-3

Contents
1.

Intellectul Property Rights and Technology

22.

Models of Learning by Doing

5

3.

Technological Leapfrogging

8

3.

Research and Development

10

4.

Process Innovation and Vertical Differentiation

13

6.

Insight from Empirical Studies

7.

The Research Agenda

16

8.

Programme Framework

19

9.

References

14

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Globalization and Technology: Africa's Participation and PerspectivesT

his concept paper has two objectives. First, it analyses the extent towhich World Trade Organization (WTO) agreements, particularly the technologyrelated provisions, could enlarge the capabilities of African countries to procure anddevelop modern technologies. Second, the paper proposes research agenda to study the
resulting empirical implications, ultimately to identify specific technology policy issues
that African countries should emphasise in the continuing debate on the effect of global
market integration. Insights from this research should also prove useful in analysing thequalitative implications of technical aid, particularly that directed to technologically disadvantaged
sectors of a country’s economy.
The specific issues raised so far in research linking trade and technology are as varied
as the models that have been developed to address them. Often the answers depend on theparticular assumptions made about the nature of the economic environment. Here, we areconcerned with the endogenous creation of comparative advantage through technology,
but under the economic environment of free trade and perfect patent protection (taken tomean the complete policing and enforcement of intellectual property rights). This endogenous
creation of comparative advantage can occur in two main ways: through research anddevelopment (R&D) and through learning-by-doing (LBD). We begin by reviewing therelationship between intellectual property rights and technology. Then we examine the two
ways in which comparative advantage can be endogenously created. In conclusion, we draw
insights from these ideas, and from the empirical literature, to suggest specific research
agenda of immediate relevance to policy formulation and advice in Africa, and for democratizing
global economic relations.

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1.

2Intellectual Property Rights and TechnologyT

he implementation of the Agreement on Trade-Related Aspects of Intellectual
Property Rights (TRIPS) in principle adds another inescapable obligation to thecommercial policy of member countries. African countries struggling to elevate theirtechnological base need to scrutinize carefully the “tying of hands” implied in TRIPS so thatthey can be clear on where their interests lie with regard to the enforcement of thiscomponent of WTO agreements. This is also important to the management of intellectual
property, where the goal should be to choose the terms and conditions that maximize thevalue of the intellectual property, not the terms and conditions that maximize its protection.
Without doubt, a certain level of protection of intellectual property rights is necessary
for the ex ante optimal amount of investment in R&D in the aggregate. However, protection
is rarely perfect for a variety of reasons. Strict enforcement of patents, copyrights andlicenses could be very costly. “Reverse engineering”, imitation, or inventing “around thepatent” might be easy. Several explanations and product-cycle models have been developed
to study this phenomenon, as well as to study the technological implications for the Southof a lax enforcement. Vernon (1966) and Krugman (1979) studied product cycles, according
to which the North produces and exports newly invented goods while the South specializes
in goods that have been around for a longer period. The South’s specialization in more“mature” goods underscores the implicit assumption that technology spreads to low-tech
countries more slowly.
Other authors such as Chin and Grossman (1990) and Deardoff (1992) have studied
whether the South benefits from protecting foreign intellectual property rights, and whether
not doing so is particularly harmful to the North. Chin and Grossman construct a partial
equilibrium duopoly model in which it may be in the South’s interest to provide no patent
protection at all. In their construct, the North always suffers from a failure of the South toprotect while the South typically gains by allowing imitation unless its share of the worldconsumption of the product is very large. Deardoff establishes a similar result for productinnovation and shows that as patent protection spreads to a larger portion of the world, themarginal benefit on aggregate welfare becomes negative. Taylor and Silberston (1973) also
agree that R&D protection and other incentives to engage in R&D are necessary to ensure
an optimal amount of investment in research effort. However, these authors observe that asurvey of 27 British companies in research-oriented industries suggests that the reduction
in R&D if patents did not exist varies across industries. Schmalensee (1988) and Levin etal. (1987) make similar observations on the varying effects of patent protection acrossindustries. According to Taylor and Silberston (1973), the proportion of research expendituresin the two major areas of chemicals and engineering that executives view as depending on
patent protection were as follows: In chemicals: pharmaceuticals (64%), other finished andspeciality (25%) and basic (5%); in engineering: mechanical engineering, of which plant,
machinery and equipment (7%), components and materials (2%), and electrical engineering(negligible).1
1

Cited in Carlton and Perloff (1994), p. 674.

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Diwan and Rodrik (1991) develop a model that explores if and when the South can use
protection strategically to influence the direction of technological progress in the North. In
their model, both classes (the North and the South) have different preferences over the
direction that technological progress should take, meaning the type of goods that should beinvented. “The North would like to develop drugs against cancer and heart disease, whereas
the South benefits more from drugs against tropical diseases. Labor is cheap in the Southbut expensive in the North, so the North’s labor-saving innovations are less useful in theSouth” (Diwan and Rodrik, 1991: 29). The authors derive several implications of immediate
relevance to this paper: One is that South negotiations can take different views for different
products. In products where, a priori, we can expect fewer differences in needs and tastes
between the North and the South (software and textbooks in certain disciplines), theincentive not to enforce is the greatest. In others where differences in taste and needs arestrong, such as in pharmaceuticals and agricultural innovations, a failure by the South toprotect would deprive the South of the opportunity to influence the development by theNorth of technologies more suitable to the South.
But what about the incentives that innovators themselves have to transfer knowledge andtechnologies abroad? Why would a firm wish to locate its activities offshore where it might
be at some competitive disadvantage with local firms? The answers are many: Production
costs might be lower overall. It may be a viable means of serving foreign markets, net oftransportation charges and tariffs. Keeping trade secrets secure is another motivation.
However, Siotis (1999) derives an opposite result in which technological spillovers areprimarily localized, so that the risk of dissipation of trade secrets prevents foreign direct
investment (FDI) by a technologically superior multinational corporation (MNC). Siotis’smodel considers the incentives for FDI that confront MNCs in a strategic environment. His
premise is that MNCs derive their competitive strength from “knowledge-based intangible
assets”. He models a two-stage game in which the strategic decision of how the MNC willserve the foreign market is made in the first stage. This is followed by a Cournot game(tactical rivalry in quantities) in the second stage, conditional on the choice of how to serve
the foreign market made in stage one.
Three sources of incentives for FDI emerge in equilibrium: Under the assumption thatboth countries are endowed with human capital, the MNC undertakes FDI to source anadvantage associated with foreign location since technological spillovers could be a twoway process. When the firm contemplating the FDI is technologically well ahead of it
competitors, spillovers reduce expected profit and the firm will choose to export rather thanrisk dissipation. When there is no distinct technological lead by the MNC, spatially bounded
externalities generate an FDI-enhancing effect in that FDI always occurs.
What are the implications of these outcomes when the foreign countries are not endowedwith human capital? Put differently, what is the position of an African country that has nocomparative advantage in imitation, or cannot cost-effectively imitate in the new WTO
world? According to Siotis (1999), the answer is that technologically laggard countries do
not count (i.e., influence decision making). With trade barriers out of the way, an MNC has
a choice of either engaging in foreign direct investment or of serving the market throughexports. This is a remarkable result: Market integration and lax enforcement of intellectualGLOBALIZATION AND TECHNOLOGY: AFRICA'S PARTICIPATION AND PERSPECTIVES

4property rights could generate some benefits for countries having comparative advantage
in imitation, and having an added advantage of an “attractive” market. But otherwise (i.e.
under a strict regime of enforcement), free trade constrains the capabilities of low-tech
countries to leapfrog technologically. China is a nation that could have benefited under the
first scenario and indeed may have exploited that advantage (before TRIPS).
Hortsman and Markusen (1992) also build a model of foreign direct investment showingthat MNCs are most likely to emerge when the fixed costs of adding a plant or maintaining
a subsidiary are small, particularly in comparison with the size of transport costs, tradebarriers and fixed costs of operating a firm. It turns out that R&D expenditure is the typeof firm-level fixed cost that generates economies of multi-plant production. His model
highlights the indirect role of technology in inducing technology transfer by innovators (ina bid to exploit multi-plant economies). How strongly this effect operates in practice is yet
to be clearly determined.
As a choice in the MNC menu of serving foreign markets, licensing comes with complications
that have been well explored in the literature (Ethier, 1986; Grossman and Helpman, 1991).
Being incomplete, such contracts are necessarily inefficient and riddled with agency
problems. Opportunistic behaviour on the part of the licensee or the licensor can create
additional costs. The licensee may exploit the technology to develop a better product. The
licensor may renege on promised exclusivity. Anticipating such behaviour, the licensee
may bid for less than the license is worth and so the innovator suffers dissipation in expected
profits.
Of course there is always the risk that both direct investment and licensing might speed
up the process of imitation and diffusion. It may be that learning spillovers which may takedifferent forms including reverse engineering and the gleaning of products and processes,
are more probable when production takes place locally than when goods are imported froma foreign manufacturing base.2 Then the potential MNC/licensor must weigh the gains
associated with having lower production costs against potential losses from a rapid erosionof its monopoly position. Evidently the focus of many of the papers in this area is on a firm’s
choice of how best to exploit the technological advantage it has gained. Of utmost relevanceto the South is the question of how to encourage technology transfer to an indigenous basewithout causing the innovators to take their business elsewhere. Grossman and Helpman(1995) suggest that for that we need to study how knowledge is transmitted within andbetween firms. In other words, how technological capabilities are actualized within economies,
which the theoretical literature seeks to understand by modelling the endogenous creationof technological progress that can come either from LBD or from investments in R&D.

Available empirical evidence (discussed subsequently) seems to support this view.

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Models of Learning by DoingL

earning-by-doing is the repetition of certain production processes that may in turnallow firms and industries to discover more efficient ways of doing thing process
innovation. When a learning experience is confined to a single plant or firm, the distinction
between learning-by-doing and more formal R&D activities may not be of essence, because
in both cases the firm recognizes a cost of creating knowledge, which it weighs against thepotential benefits of a new or improved technique (i.e. the firm fully internalizes thedecision).
The literature notes that once it is recognized that knowledge spreads, the pertinent(empirical) question is to identify the universe of learning: Does learning occur from theactivities of firms in the same industry within national borders, across national borders, orboth within and across national borders? From local firms in other industries, or from otherindustries outside the national borders? To cite three examples, Irwin and Klenow (1994)
investigated the existence and the geographic scope of knowledge spillovers from learningby-doing. They found that firms do learn from the experience of others, and that learning
does spill over as much across borders as it does within firms located in the same country.
Karshenas and Stoneman (1995) and Sarkar (1998) provide recent surveys of theoreticaland empirical studies on technological adoption. The literature suggests adoption frequencies
as crucial to understanding how technological possibilities are actualized within an economic
system, as well as how effective are different economies and regions at upgrading or
mimicking.
Grossman and Helpman (1995) provide a unifying perspective in a model that facilitates
the isolation of the specific implications of each assumption driving the various special
cases in which spillovers are limited in some way. Examples would be the cases in which
spillovers are limited to a firm in a given industry, or to a cluster of industries, or to a firm
operating in a given country or in a geographical area (such as an industrial conurbation).
The elements of the model may be summarized thus: All outputs are produced solely bylabour, and production everywhere exhibits constant returns to scale. The labour necessary
to manufacture a unit commodity in some country depends not only on the commodityspecific productivity of labour “intrinsic productivity”), but also on the technical knowhow (“accumulated knowledge”) available. In these models, the accumulation of knowledge
occurs simply in the course of manufacturing output.

2.1 Complete International Spillovers
This is the case of bi-directional spillover benefits. Technical information flows readily
across international borders, and the experience of local producers contributes just as muchto the overall knowledge base (i.e. as much at home as abroad). And although industry
specific, learning is external to firms in the industry. Learning is proportional to cumulative
industry output globally. In this case, learning (technical progress) is neutral to comparativeadvantage and hence does not influence the pattern of trade. Nonetheless, trade may affectGLOBALIZATION AND TECHNOLOGY: AFRICA'S PARTICIPATION AND PERSPECTIVES

6

national rates of productivity (since manufacturing increases knowledge) and output growthacross all time horizons.

2.2 National Spillovers
Basically, firms are assumed to learn more from the experiences of other domestic producers
than from firms abroad. So, learning increases productivity in own goods (locally manufactured
tradeables) to the total exclusion of foreign rivals. Similar results obtain in the foreigncountry. The comparative advantage widens and the initial trade pattern gets locked into
place. The lesson is that history matters since the initial pattern of specialization depends
on both intrinsic productivity and in dustry know-how.
Some of these models that analyse a two-good world (say, high-tech goods and low-techgoods), with complete or incomplete specialization, raise the possibility that countries
lagging in technological development and having an initial comparative advantage in “nondynamic” sectors might want to use trade policy to alter the pattern of specialization (to“break out”). Grossman and Helpman (1995) note that a laggard small country at the marginof competitiveness in the faster growing sector would gain from a policy-induced switch.
Both these authors and Rodriguez and Rodrik (1999) note that the trade-off between thestatic efficiency loss from the intervention and the dynamic gains (from productivity boost)favour intervention. The key issue here is that intervention needs to be “time bound” andpredictably so.3
According to Rodrik (1992), once firms reach the world technological frontier and thelearning effects are exhausted, the protection should be stopped. Unfortunately, asymmetric
information between the protected group and the policy makers generate perverse incentives.
As policy makers can only observe imperfectly how well the protected firms appear to be
doing, firms have an incentive to misrepresent their position relative to the technologicalfrontier. All too often, temporary protections become permanent under political pressures.
Rodrik sees the prevalence of a “soft-policy” regime as a powerful argument for eschewing
selective protection of industries and downplaying the discretionary element in trade
policy. A central message is that policy success in this regard (measured in terms of net
welfare position) will depend significantly on the qualitative dimensions of trade policy andthe nature of the state. He cautions that as policies are not implemented in a vacuum, theirconsequences are mediated through the state and markets to produce qualitatively different
outcomes from that primarily envisaged. Hence the analyst must be aware of these conditioning
influences.
Krugman (1987) makes a slightly different point about policy in his analysis of two large
countries with numerous goods. Under the assumption of localized spillovers in learning,

There is yet another dimension to LBD that calls for policy intervention. Besides the "break out" effect, there
is also th e policy intervention to correct the spillover benefits from industry know-how. According to Rodrik(1992), the true marginal cost from LBD is lower that the current marginal cost of production by the discounted
sum of future benefits (cost savings) of the know-how geneated today. So, in the absence of intervention, theex ante optimal amount of learning will not be generated.
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each country has an incentive to subsidize production of a few goods near the margin ofcompetitiveness so that it can gain technological advantage in their production. Hence it
expands its range of manufactures, continues to boost productivity and creates more
employment. The implicit assumption is that protection is for only a short term. The
incentive to nibble at products, or slice out sectors, continues for a while. Observationally,
trade protection is seen to endure while this phenomenon, which Krugman dubbed the“narrow moving band”, continues. The protection does not last indefinitely, as eventually
the wage differential between the countries becomes sufficiently large that the marginal
social cost of the next slice exceeds the expected value of the discounted future stream of
benefits.

2.3

Inter-industry Spillovers

Models in this category examine the implications for inter-sectoral learning when there aredifferential contributions to knowledge from industries. Using a case in which learning
takes place only in the course of producing one good although productivity is imparted
equally in each of the two sectors, a particular specification of the model yields anequilibrium in which an exogenous improvement in the productivity of the technologicallydisadvantaged sector can lead to a decline in growth rate (Grossman and Helpman, 1990,
for instance). Moreover, if a country happens to accumulate more of the factor specific tothe disadvantaged sector, it also can generate the effect noted above. As an example, one
can think of a sector investment programme (delivered as aid) that is targeted to thedisadvantaged sector. Or, one can imagine as well, a boost in export (from the disadvantaged
sector) brought on by free trade. Under free trade in a technologically-driven world, hightech countries may be altogether too willing to forgo competition in the low-tech sectors.
Conceding these sectors to developing countries in a free trade regime will, in our context,
dynamically lead to a decline in growth.

2.4 Industry Clusters
The possibility that industrial conurbation might gravitate to particular nations was first
noted in Posner (1961). He argued that this dynamic process might occur if LBD generated
spillovers within but not between clusters, with these spillovers limited in their geographic
reach. The intuition is that if a country initially produces a large quantity of any one goodin a cluster, then the learning spillovers from this activity will tend to confer a dynamic
comparative advantage in other industries in the same cluster (consistent with the forces ofinter-industry spillovers discussed in the preceding section). This occurs even if productivity
in the neighbouring industries is low initially. Here again, history would seem to matter, forthen a country that has an initial comparative advantage in producing the most popular goodor goods in a cluster would tend, over time, to gain competitive advantage in producing theremaining less-popular goods. Resting basically on the same principles, this prediction issimilar to Krugman’s “narrow moving band”, according to which sectors are sequentiallysliced off, or products are systematically nibbled off.

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3.

8

Technological Leapfrogging

B

resiz, Krugman and Tsiddon (1993) identify conditions under which a country thatbegins technologically behind may eventually surpass its trading partner, only to be
overtaken again in a subsequent phase of the periodic steady state. This pattern obtains
because new and superior technologies, arriving exogenously in their model, may be
adopted by the lagging country even though they are not profitable in the leading country.4
Grossman and Helpman (1995) note that leapfrogging can indeed arise anytime LBD isbounded for a given product and specific to the product and country. Then, if the eventual
superiority of the new arrival is not enormous, inertial forces will propel existing producers
to pass over the new in favour of the “tried and tested”.
No single firm in the experienced country will find it profitable to switch, particularly
as it is unable to internalize the externalities from learning.5 However, because of its lower
wage level, the firm in the lagging country could adopt the new arrival even without thebenefit of any experience in the new technology. Post adoption, the firm experiences a
productivity boost over time, and by virtue of superiority of the new technology, displaces
the previous leader. By construction, the “laggard country” in the current technology
always enjoys a comparative advantage in any new technology that may “happen along”.
Such a set up, in which leadership contains the seeds of obsolescence and the follower is“heir apparent”, generates (in steady state) the alternating (now advantaged, next disadvantaged)
technological identities of the countries. To place any great faith in the possibility ofleapfrogging as a source of growth for Africa, one would first have to think hard about how
often technology exogenously “happens along”. It can happen, though, through licensing.
It turns out that for firms in low-tech countries, possessing the opportunity to purchaseinventions and innovations mimics an “exogenously arriving” technology.
The possibility of technology transfer under licensing to other firms leads to a considerationof the incentives to license (for a firm) or to license multiple firms (in the case of an
independent inventor). For an independent inventor (i.e. a firm specializing in R&D), it may
be the only way to exploit a patent. In general, a firm will be reluctant to license a rival
because the knowledge transfer might allow the rival to invent around the patent, or evento develop a superior technology (leapfrog, in our context).
Closely related is the issue of “sleeping patents” or “shelving” in order to foreclose
access to technology.
One way around this allegation is to force the patent holder to license others. Moreover,“shelving” should become part of WTO agreements in order to eliminate the free-rider

4

This outcome is driven by the pre-adoption wage in favour of the less technologically advanced country.

Recall the LBD here is assumed specific to the product and country , but not to the firm. So, workers can migrate
across rival firms in the same industry, carryiong with then the sunk investment from previous employers. Asa practical matter, researchers such as Jovanovic (1997) and Giovannetti (2000) emphasize adoption costs as
key parameters in understanding technological diffusion. In fact, Jovanovic finds that adoption costs outweighinvention costs roughly 20 or 30 to 1, and suggests further that in "LDCs the ratio must be astronomical".
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problem that can prevent aggrieved firms from seeking redress by way of compulsory
licensing. The free-rider problem arises when one firm invests in proving “shelving”, only
to have other firms costlessly benefit from a successful challenge. One last point on thesubject of incentives to license is the fact that licensing may also increase product market
competition (and so possibly reduce expected profits) unless the licensee serves a segmented
market. The global trend towards market integration narrows the set of markets that may
now be considered segmented on the basis of trade barriers. Next, we turn to models thatexamine the connection between trade and technology when new technologies arise fromplanned investment.

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4.

10

Research and DevelopmentThe literature takes the protection of intellectual property rights as fundamental before
an environment can be considered conducive to R&D.6 Without such protection, underinvestment results as investors cannot fully appropriate the benefits of their investments,
or so the argument goes. Protection can take a variety of forms: Explicitly through a grantof patents, or implicitly from imitations being a costly process, or from success at preserving
trade secrets. Because proprietary rights to technology confer market power, imperfectcompetition is at the core of models that explore this aspect of trade. The extant model inthis area is due to Ethier (1982). Helpman and Krugman (1985) and Dixit and Stiglitz (1993)
are important additions. Contributions and extensions focusing on the impact of the
proprietary access to innovative technology include Grossman and Helpman (1990) and
Coe and Helpman (1994). In these models, the innovation is in the proliferation of thevariety of intermediate inputs. More varieties are associated with increased specializationand hence productivity. Therefore, on going innovation requires sustained increases in
research productivity. The nature of the stock of knowledge determines the evolution of
trade in a global economy.

4.1 Knowledge Spillovers – Global
Whereas trade is neutral on productivity in an LBD model with complete international
knowledge spillover, access to intermediate goods through trade is a substitute for international
spillovers in this R&D modelproductivity depends on the variety of intermediates, but noton the sources. However, this is only with respect to manufacturing. The country thatimports inter-mediates will lag behind in technological innovation since knowledge stockis proportional to the number of projects undertaken, and own productivity in research is
proportional to that country’s local stock of knowledge.
Suppose that nature smiled on a country so that it invented a disproportionate numberof intermediates before trade commenced. Grossman and Helpman (1991) demonstrate that
history (initial conditions) is irrelevant in determining the ultimate pattern of trade whenknowledge is a global public good, as any competitive advantages due to prior experience
are bound to be short lived. Where factor compositions are uniform, trade accelerates every
country’s long-run rate of innovation, just as in the case of one final good and one primaryfactor. With global knowledge spillovers the stock of wisdom grows faster in a larger
economy.
Where the countries differ in factor composition, innovation must accelerate if thedifferences in factor abundance are small. But if the differences are large but do not rule out
As an historical aside, we are reminded in Juma (1999) that when "The United States was still a relatively young
and developing country...it refused to respect international intellectual property rights on the grounds that it was
freely entitled to foreign works to further its social and economic development." He cites further examples fromthe pharmaceutical industry, where patent legislation was passed by Germany in 1968, Japan in 1976, Switzerland
in 1977, and Italy and Sweden in 1978, presumably after attaining a certain level of technological competence
and global competitiveness.
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factor price equalization, trade mimics an enlargement of the economy to which the humancapital poor country is now a part. Since an increase in the relative access to human capital
benefits the poor country, it experiences an increase in the rate of innovation in its high-tech
sector. Trade also has the effect of forcing the poor country to specialize more in the
production of traditional goods than would be the case in autarky. 7 The forces between theincrease in productivity in the high-tech sector and the increased production in the low-tech
sector might on balance slow the country’s rate of technological progress. A very high gain
in a relatively small sector and a small decline in a large sector could on average yield adecline (much like the dependence of changes in total revenue, on the relative adjustments
of price and quantity along a segment of a demand curve).

4.2 Knowledge Spillovers – National
Grossman and Helpman (1991) and Markusen (1991) are extant models in this area. As
usual, the stock of knowledge that determines national research productivity accumulates
in proportion to local research activity. A traditional consumer good is manufactured withconstant returns to scale, while the high-tech product is assembled from differentiatedinputs of which research generates the blueprints. Starting with equal sized countries, eachalways producing some of the traditional goods, competitive forces equalize wages. With
wage rates always the same, prices of intermediates are the same in both countries. Thisimplies that the R&D activity will be more profitable under a lower cost of innovation.
Since the cost of invention (by specification) depends only on wages and knowledge stocks,
R&D blossoms in the country with the larger knowledge stock. Several results follow fromthis model: (1) Initial lead is self-reinforcing so that the leader dominates in the high-tech
sector. Yet again, history matters. (2) Trade can reduce the rate of innovation in the lagging
country as, post integration, competitive forces drive its resources out of R&D activities(see also Feenstra, 1990, and Matsuyama, 1992).
It is quite possible for a country with a natural comparative advantage in R&D arising,for instance from an abundance of human capital to initially lag in accumulated knowledge.
In this case, its cost advantage may offset its weakness from a low base of accumulated
knowledge. As well, a large country even though lacking in natural advantage and nosizeable accumulated wisdom can overcome its history through its largeness. Helpman(1984) demonstrates that since R&D is an activity with dynamic increasing returns to scale,the benefit of size when there is a national stock of knowledge is similar to national
increasing returns to scale in production.
We end this section by underscoring the model predictions about the effect of trade ontechnological progress given country size, history and restrictions on technology dissemination.
As specified above, trade can slow a technologically laggard country’s rate of innovation,
if there is another sector to which its resources might be driven (as would realistically be
the case). Feenstra (1990) analyses the size effect. Assuming one final-goods sector in eachcountry, using intermediates invented in the research lab, profits (incentives for R&D)
7

Grossman and Helpman (1995) elaborate on this point, but we take it as intuitive.

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erode faster under integration for the small country, and so slow down the steady-state rateof technological progress. The enlarged market effect is conducive to the large country forwhich technological progress is accelerated everywhere along the transition path to steadystate.

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Process Innovation and Vertical Differentiation

his involves investments to reduce production costs either through improvements in thequality of inputs or declines in the primary resource costs of manufacturing final
goods. Hence the present analysis contrasts with previous discussions that dealt withmodels of horizontally differentiated varieties. The building blocks here are due to Aghion
and Howitt (1992) and Segerstrom, Anant and Dinopoulos (1990).
There exists at any given time, the latest version of an input used by firms for production.
The final good is assembled from a fixed number of intermediate inputs. Other than thesemodifications, the structure of the model is similar to that used to explore models ofhorizontal product differentiation. The linkages between process innovation and growth arealso similar to those found in the horizontal case. The productivity of the economy once
again depends on the accumulated investment in R&D. Hence innovation rate and growthrate of final output are both proportional to the total R&D baseresearch activities are here
also subject to dynamic scale economies. Under market integration, there is a boost totechnological progress because the instantaneous probability of a breakthrough is higher
when two potential winners are pooling in the race than in autarky. Another distinction ofprocess innovation models is that international spillovers occur naturally with trade because
innovations are observed or broadcast through the arrival of the “latest” input. Therefore,
localization of spillovers such as may occur under horizontal differentiation does not
obtain. In summary, therefore, a small country that is a high-tech laggard may be disadvantaged
by trade. But when the learning process is characterized by dynamic scale economies, theopportunity for gains from market integration may be brighter than is suggested even bystatic considerations of trade benefits. Evidently (as we prepare to jump into the empiricalside of things), many of the answers to the questions that motivated research along the lines
reviewed here turn on the nature and extent of technological spillovers. Empirical evidence
on these important pivots, although still scanty, nonetheless suggests that spillovers aremostly geographically localized.

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M

14

Insight from Empirical Studies

any of the key issues on technology and trade cannot be meaningfully addressed
without firm-level data, particularly if as Grossman and Helpman (1995) emphasize,
we need to understand how know-how is transmitted within and between firms. Nonetheless,as a framework for the study of these phenomena, models of technology diffusion andadoption have been developed. Some more recent surveys of the theoretical and empirical
work in this area include Karshenas and Stoneman (1995) and Sarkar (1998).
Empirical studies on adoption have usually focused on the diffusion of technology overtime and on assessing the factors that determine the diffusion rate. These studies havedetermined that adoption of newly available technology follows a logistic curve and that the
diffusion rate varies across industries and technologies. More recently, other researchers
have used duration models to assess the relevance of different explanatory variables on theprobability of adoption. The literature (exclusively descriptive of western industrialized
nations) so far seems to have settled on the following stylized facts (Giovannetti, 2000): (1)At any point in time, adoption frequency is asymmetric in a given industry, and (2) in the
adoption of new technologies, there are highly diversified geographic patterns. There isalso mounting evidence that diffusion is localized. Among the most recent studies are
Keller (2000) and Audretsch and Feldman (1996).
In general, the theoretical underpinnings of most recent empirical studies of technology
diffusion can be categorized into the neoclassical equilibrium models, and the evolutionary
disequilibrium models. And although the seminal research on diffusion relied on epidemic
models of diffusion, it lacked theoretical rigor and soon fell out of favour among researchersin economics. The new models emphasize modelling the decision making process ofadopters, and the microeconomic foundations of the dynamics of the diffusion process. The
focus of these models has been primarily on how to characterize the mechanics of the
diffusion process and that of the decision making procedures driving the diffusion process.
Accordingly, the neoclassical equilibrium models assume rational agents with full information,
while disequilibrium models rooted in evolutionary theory are based on limited information
and a more open loop decision making process and diffusion dynamics. The evidence fromempirical and historical studies on these alternative approaches is mixed. Sarkar (1998)
notes that “As with the theoretical studies, distinct divisions, often conflicting, can be
identified in existing empirical evidence, and in the technological historians interpretationof the dynamics of technological diffusion” (p. 133).
The literature makes a distinction between intra-firm and inter-firm diffusion. Intra-firmstudies the level of use of technology by a firm—the proportion of firm output or the
proportion of its capital stock tied to the new technology. Inter-firm is quantified by the
proportion of firms in the industry using the new technology. Through a broad considerationof both the rates of intra- and inter-firm diffusion, researchers can extract the growth rateof the share of total industry output produced by the new technology. This share would bea more aggregated measure of the diffusion in an industry. Aggregating over industries
provides an economy-wide measure of diffusion.

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A review of the advantages of both the neoclassical and the disequilibrium models leads
us to favour an eclectic approach to the study of diffusion. Under this framework, we findthat the game theory approach is capable of encompassing the vital elements of both sides.
In the game theory framework, the process of diffusion is modelled as an outcome of thestrategic behaviour among potential adopters. Timing is the decision parameter, which is
chosen so that adoption leads to staying ahead of the pack. Game theory perspective forces
a consideration of rivals’ decisions, a sensible point when one recalls that competition (orspillovers, which here has the same effect as competition) reduces the expected benefits
from imitation and so implicitly raises the cost of imitation. Game theory models are also
capable of identifying externalities. In particular, the network models of Farrell and Saloner(1986) and Katz and Shapiro (1986) incorporate positive externalities in a more generalway, rather than focusing only on informational externalities and learning. 8 In their models,potential users are assumed heterogeneous with different preferences for the innovation.
They simultaneously decide whether to switch to the innovation or stick with the status quo,given that the benefits from adoption are positively related to the number of existing
adopters. In the non-cooperative equilibrium, switching strategies depends on an individual
firm’s preference parameter, which is increasing in adoption-propensity. Within low values,
a firm will not switch regardless of rivals’ behaviour in period one. For intermediate values,
a firm decides to switch in the second period conditional on observing that rivals shifted in
the first period. And for high values, a firm decides to switch in period one. Therefore, in
equilibrium, the diffusion profile will depend on the configuration of individual preference
values. In a duopoly, if both firms have preferences that range from low to intermediate
values, diffusion will be characterized by excess inertia where neither firm adopts theinnovation. Conversely, when both preferences assume high values, the diffusion profile
will be characterized by excess momentum whereby the firms rush to adopt. Internalizingthese kinds of externalities may require the government to co-ordinate on the equilibrium. 9
Evolutionary theorists point to the importance of institutions, and call to question therealism of rational choice in contexts where existing cultural values, moral attitudes,
folkways, traditionally oriented behaviour, fear of ostracization, power relationships andvested interests may impinge on rational decision makers, causing them in many cases tostick to existing routines of behaviour rather than switching to new ones (Sarkar, 1998).
These concerns can be incorporated into the models described above through the preference
parameter. They can also be studied empirically as part of the imitation costs in the natureof inertial forces to be overcome. The real challenge is to surmount data problems involvedin explicitly incorporating these important qualitative elements into a model. This isperhaps the reason evolutionary theories of diffusion that emphasize the influences ofqualitative factors on the incentives for, and on the capabilities of, adoption rely mainly on
historical descriptive methods.
Models that focus on information externalities include Kapur (1995). Surveys of this strand of literature canbe found in Tirole (1998) and Reinganum (1989).
8

9
To achieve a proper evolution of telecommunications technology, for example, governments may need tocoordinate on standards to ensure compatibility.

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The Research AgendaT

he survey of the literature and the conceptual issues covered in this paper present uswith a number of research entry points. New knowledge in these areas would be criticalfor strengthening the technological position necessary for Africa’s effective and equitableparticipation in the global economic system. The underlying philosophy of the proposed
research programme is to add Africa’s voice in shaping the emerging international regimes
and to contribute to the debate or to challenge the “consensus” that has emerged without any
serious consideration for its impact on Africa. This philosophy forces us to choose a few
research areas where the African Technology Policy Studies Network (ATPS) can makesome meaningful contributions. We recognize, though, that the incentive to engage ininternational relations is derived from strong domestic policies, national capabilities andultimately a robust regional position. The research agenda that follows will reflect these
positions.

7.1 International Patenting Regime and TRIPS
The enforcement of the WTO agreements under TRIPS has serious consequences for thetechnological base of African countries in their fight against poverty and disease. While
respecting the need for intellectual property protection, the proposed research would
examine the specific provisions of TRIPS and relate them to the needs, tastes and natural
endowments of selected African countries so as to understand the conditions that maximize
the value of the intellectual property, as well as the terms that would minimize protection.
What would be the implications of strict enforcement of patents on reverse engineering,
imitation, specialization and inventing around the patent? Are there ways in which todemocratize the protection regime in some products where access is critical for sustaining
and improving livelihood, as in pharmaceuticals? What of agriculture and biotechnology?
What sort of influence can Africa exert in terms of the technological progress in the Northin these areas? How do these relate to the incentives that innovators have to transfer
knowledge and technologies abroad? There is a current debate in Africa on the edge of theseissues, but it is largely lopsided and has not been motivated by research with an African
perspective.

7.2

Globalization, Diffusion and Imitation Costs

Under this proposed agenda we intend to examine market integration and its impact ontechnological possibilities and how these possibilities are exploited within economic systems
in Africa. How effective are different economies and regions at the technology upgradingnecessary for exploiting the gains from globalization? Studies of adoption frequencies
provide part answers to these questions of critical importance to technology policy formulation,and research on logistic diffusion and innovation surveys are some of the available researchstrategies.10

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Critical aspects of this agenda for determining how technology opportunities are exploitedunder globalization are the study of imitation and adoption costs, the study of transport andcommunication costs, and the cataloguing (taxonomy) of technology opportunities or“innovation size”, as Giovannetti (2000) indicates, where size refers to its likely impact(cost saving) on production processes. What is the international regime under which
imitation can be carried out successfully? In which sectors are these most profitable for
Africa? Are there loopholes in the international trade regime (WTO) that Africa can
exploit? Is the globalization of technology, i.e., the market for technology, becoming morecompetitive, and hence improving the accessibility and availability of technology to developing
countries in Africa? What sets of innovation policies do African countries need to put inplace in order to engage meaningfully in the globalized market? We would also explore theextent of market integration for technology by looking at logistical costs. The lower thecosts, the more integrated are markets and vice versa. When markets are geographicallyclose but subject to prohibitive logistical costs, these markets from an operational standpoint
remain segregated. Other imitation related costs are schooling and on-the-job training,
including labour training externalities whereby firms risk losing valuable investments in an
employee upon a job change. The externalities arise because firms are unable to guarantee
full appropriation of the value of their investment in an employee who can migrate to rivals’
plants. These factors suggested for study are important building blocks for testing theprediction that unless imitation costs, or adoption costs, or costs of upgrading (as the casemay be) are progressively reduced, adoption processes will not spread uniformly in spacewhen markets are highly integrated. Under globalization, the implication of the foregoingprediction is that the North–South technology gap will be exacerbated by integration unlessglobalization comes with reductions in the costs of adoption. Are there ways of minimizingthese costs without violating the WTO agreements?

7.3 FDI,Technology Transfer and Localized Diffusion
In the globalized and WTO world, foreign direct investment (FDI) flows are supposed toreflect comparative advantage for the recipient as well as the originating country. In viewof the mounting evidence that diffusion is geographically bounded, the role of foreign direct
investment in technological spillovers becomes crucial. Therefore, given the mixed evidence(Markusen, 1995) as to whether the level of foreign investment is positively related to theexistence of trade barriers or transport costs, the proposed research agenda includes the taskof assessing the sensitivity of foreign direct investment to tariffs within the region and theimplications of this for technological capabilities in Africa (e.g. learning-by-doing, etc.).
This might shed some light on whether globalization would affect knowledge spillovers
from MNCs by eliminating the need to overcome trade barriers through offshore location.
The proposed study would further examine whether there are particular industries, sectors

10
Innovation surveys provide data on the proportion of firms that have introduced an innovation in a given time
period.

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18

or firms where FDI flows are consistent with technology transfer. Other questions are: Howdo firms identify important technologies in the globalized world? Do they automaticallychoose the right technology based on the market signals? And what role for government andinstitutions? What do these say for Africa’s technological competitiveness and participationin the global market? The result of this study will provide the ammunition the continent
needs not only to be selective in FDI promotion, but also to argue at the WTO for certain
special concessions for investments that have huge technological spillovers and for protection
where learning-by-doing (LBD) appears greatest. A detailed analysis would also reveal thenature (firm specific characteristics including ownership structure) of the firms where
spillover is consistent with poverty eradication.

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ATPS SPECIAL SERIES NO. 1

Programme Frameworkn consultation with a multi disciplinary team of scientists, social scientists and lawyers
in the ATPS Network, as well as our collaborating experts in institutions such as theUnited Nations Institute for New Technologies in Maastricht, the Netherlands, and theAfrican Centre for Technology Studies, ATPS will develop a detailed methodology foraddressing the questions raised in this research agenda.
The research process will start with a validation/methodology workshop that will elaborate
the research questions, formulate the research methodology and lay out the implementation
process. This workshop will have a mix of researchers, policy makers and key actors in the
NGO sector. Papers that have mapped the research questions and the methodologies in thethree categories mentioned above will form the core of the workshop agenda, while thisconcept paper will become the foundation of the very practical work programme articulatedby the workshop. Implementation of the work programme will be carried out by country
teams who will constitute the base for fieldwork and for robust regional positions grounded
on a synthesis of findings in the areas identified. Two additional workshops will be required
for reviewing the progress of the research and for in situ dissemination. Policy briefs andcountry level as well as regional dissemination exercises will be an integral part of thisresearch process. In order to carry all the actors along, we intend to invite researchers andinterested others to all the workshops. A senior African scholar in this field will be hiredby the ATPS Secretariat to provide the overall intellectual leadership for the programme.

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PrefacePublications under the Special Paper Series are commissioned by ATPS as concept papers,
think-pieces, leading conference papers or keynote addresses. In keeping with the network's
knowledge brokerage function, ATPS publishes published or unpublished papers fromdistinguished academics and researchers addressing policy issues relevant to the work of
ATPS in support of the Southern voice or an African perspective. Theoretical papers
advancing knowledge of technology policy issues are also published under this series.

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26

For more information on ATPS, please contact Dr. Osita Ogbu, Executive Director, African
Technology Policy Studies Network (ATPS), 3rd Floor, The Chancery , P.O. Box 10081,
00100 General Post Office, Nairobi, Kenya.
Email: oogbu@atpsnet.org
Telephones: 254-2-723800/ 714168/ 714498 Fax: 254-2-714028

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ATPS SPECIAL SERIES NO. 1

Melvin D. Ayogu is an Associate Professsor at the School of Economics, University ofCape Town, South Africa. He can be reached on : mayogu@commerce.utc.ac.za
Dr. Osita Ogbu is the Executive Director of the African Technology Policy Studies
Network . He can be reached on: oogbu@atpsnet.org

For more information on this series and ATPS, Please contact:
The Executive Director
The African Technology Policy Studies Network
3rd Floor, The Chancery
Valley Road
P.O. Box 10081
00100 General Post Office
Nairobi,Kenya
Telephones: 254-2-714168 /092/498
Fax: 254-2-714028
Email: info@atpsnet.org

ISBN NO. 9966-916-39-3