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Effectiveness and Economic Impact of Tax Incentives in the SADC ...

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TAXATION, INVESTMENT, AND GROWTH 2-3<br />

countries should be <strong>in</strong> a position to achieve high rates <strong>of</strong> growth— as evidenced by more than<br />

a few remarkable success stories over <strong>the</strong> past 40 years. 11<br />

The immediate implication is that a successful growth strategy must be seriously concerned<br />

with <strong>the</strong> impact <strong>of</strong> policies on productivity, <strong>in</strong>novation, <strong>and</strong> knowledge acquisition.<br />

Investment <strong>in</strong> physical capital is one determ<strong>in</strong>ant <strong>of</strong> economic growth, but not <strong>the</strong> most<br />

important one. This is why Easterly <strong>and</strong> Lev<strong>in</strong>e, <strong>in</strong> <strong>the</strong> passage quoted at <strong>the</strong> beg<strong>in</strong>n<strong>in</strong>g <strong>of</strong> this<br />

chapter, emphasize that “someth<strong>in</strong>g else” beyond capital accumulation accounts for most <strong>of</strong><br />

<strong>the</strong> differences <strong>in</strong> economic growth across countries. Similarly, Michael Porter’s <strong>in</strong>fluential<br />

<strong>the</strong>ory <strong>of</strong> competitiveness highlights <strong>the</strong> importance <strong>of</strong> productivity. Accord<strong>in</strong>g to Porter,<br />

policies foster<strong>in</strong>g <strong>in</strong>vestments that depend on cont<strong>in</strong>ued subsidies or protection are “simply<br />

<strong>in</strong>appropriate… no matter what <strong>the</strong> stage <strong>of</strong> development <strong>of</strong> a nation’s <strong>in</strong>dustry.” (Porter<br />

1998, 674.) Even more sharply, Devarajan, Easterly <strong>and</strong> Pack (2002) provide evidence show<strong>in</strong>g<br />

that “<strong>in</strong>vestment is not <strong>the</strong> constra<strong>in</strong>t on African development.” Their empirical analysis<br />

<strong>in</strong>dicates that low growth rates <strong>in</strong> Africa are primarily due to low <strong>and</strong> decl<strong>in</strong><strong>in</strong>g productivity<br />

result<strong>in</strong>g from policies that foster <strong>and</strong> susta<strong>in</strong> <strong>in</strong>efficient production activities. In short,<br />

neglect <strong>of</strong> <strong>the</strong> productivity component <strong>in</strong> <strong>the</strong> growth equation can totally underm<strong>in</strong>e <strong>the</strong><br />

benefit <strong>of</strong> higher <strong>in</strong>vestment <strong>and</strong> impair <strong>the</strong> quest for prosperity. 12<br />

Exhibit 2-1 outl<strong>in</strong>es policies that help foster productivity. One <strong>of</strong> <strong>the</strong>m is <strong>the</strong> use <strong>of</strong> tax<br />

<strong>in</strong>centives to encourage efficient <strong>in</strong>vestment, tra<strong>in</strong><strong>in</strong>g, <strong>and</strong> research <strong>and</strong> development. The<br />

impact <strong>of</strong> <strong>in</strong>vestment tax <strong>in</strong>centives on efficiency will be exam<strong>in</strong>ed <strong>in</strong> more detail <strong>in</strong> <strong>the</strong><br />

follow<strong>in</strong>g chapter. But first let us exam<strong>in</strong>e <strong>in</strong> general terms <strong>the</strong> <strong>in</strong>fluence <strong>of</strong> tax policy on<br />

<strong>in</strong>vestment decisions.<br />

2.2 Theory <strong>of</strong> <strong>the</strong> Determ<strong>in</strong>ants <strong>of</strong> Investment<br />

RISK AND RETURN<br />

The driv<strong>in</strong>g force beh<strong>in</strong>d private <strong>in</strong>vestment can be conceptualized <strong>in</strong> terms <strong>of</strong> risk <strong>and</strong><br />

return. Investment projects are viable when <strong>the</strong> expected rate <strong>of</strong> return on capital exceeds a<br />

threshold (hurdle) rate that reflects <strong>the</strong> cost <strong>of</strong> capital plus a premium to compensate for<br />

perceived risk. If two mutually exclusive alternatives are both viable—for example, two<br />

11 Examples <strong>in</strong>clude Korea, Taiwan, Malaysia, Indonesia, Ch<strong>in</strong>a, Botswana, Mauritius, Chile, <strong>and</strong> more<br />

recently, Vietnam <strong>and</strong> India. All <strong>of</strong> <strong>the</strong>se countries have achieved susta<strong>in</strong>ed periods <strong>of</strong> growth <strong>and</strong> poverty<br />

reduction at rates far higher than today’s rich countries experienced historically.<br />

12 Moran (1998) found that nearly half <strong>of</strong> <strong>the</strong> FDI projects that he exam<strong>in</strong>ed <strong>in</strong> 30 countries had net negative<br />

effects on host-country welfare. Pigato (2000) reviews several such studies <strong>and</strong> concludes that negative effects<br />

<strong>of</strong> FDI arise ma<strong>in</strong>ly from “lack <strong>of</strong> competitiveness <strong>of</strong> <strong>in</strong>put <strong>and</strong> output markets <strong>in</strong> <strong>the</strong> host country, <strong>and</strong> from<br />

distortions <strong>in</strong> <strong>the</strong> domestic <strong>in</strong>centive framework.”

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