Reading the conclusions of David Dollar’s “Globalization, Poverty and Inequality since 1980″, you would be forgiven for thinking that
(a) Things are going fine: world poverty has just fallen for the first time in history, and poor countries are generally catching up to the rich;
(b) Things would be going even finer if more poor countries would just “integrate with the global economy”, following the example of those who have grown fastest.
In fact, what the evidence he cites (and some he doesn’t cite) shows is that
(a) Things are not going fine. The reduction in world poverty since the early 1980s, which was not the first such major fall in history, was largely due to China halving its poverty rate, progress which has since slowed to a crawl. The average growth rate of poor countries since 1980 is zero. Sub-Saharan Africa is gettting poorer.
(b) “Integrating” with the world economy is not guaranteed to reduce poverty (and even so is not so much a choice, as Dollar presents it, as an outcome). Dollar implies that integration comes through trade liberalisation, but most poor countries which have liberalised have seen few benefits as a result. The very poorest countries are more liberalised than other developing countries, and are actually more ‘integrated’, using Dollar’s terminology, than rich countries. China halved its poverty rate well before it reduced trade barriers significantly.
Dollar identifies five main trends in globalization, poverty and inequality since 1980. The first is that “Poor country growth rates have accelerated and are higher than rich country growth rates – for the first time in modern history”, as displayed in this chart:

Now, this “phenomenon of the fastest growth occurring in the poorest countries” really makes it sound like the average poor country is growing faster in the 1990s than they did before, and catching up to the rich countries. But if you thought that, you would be wrong. Dollar admits on the next page that “If you ignore differences in population and just take an average of poor-country growth rates, you will find average growth of about zero for poor countries in the 1980-2000 period”. That’s zero.
The thing is that China, which accounts for about a quarter of the population of all developing countries, skews the figures massively. It’s growth was low in the 1970s but rose to an annual rate of about 8% per capita in the 1980s and somewhat higher in the 1990s. Most other poor countries grew much less or not at all. And it’s not unfair to weight countries equally: looking at real per-person averages is fine if you want to examine global trends, but if you want to suggest policy lessons, which Dollar clearly wants to do here, researchers generally look at per-country averages.
The second trend identified by Dollar is that “The number of poor people in the world has declined by 375 million, the first such decline in history”.
I really don’t know how he can say this with a straight face, unless he’s using some personal definition of “such”, for example. Dollar’s illustrative chart is as below.

The first thing to note is that he is simply combining two bits of work (Bourguignon and Morrisson 2002, and Chen and Ravallion 2004) with completely different methodologies. This is extremely dodgy, but since he’s done it we’ll go along with it for a while (and in the following discussion I’m assuming that the available data on poverty levels is accurate, which some would contest).
To me, Dollar’s own chart seems to disprove the claim that the reduction in poverty since the early 1980s is “the first such decline in history”, as Bourguignon and Morrisson’s data shows a sharp decline from 1950 to 1970. This is even more apparent if you construct a chart based not on numbers but on poverty rates, as I have done below.

I had to combine nearby years into one, and there’s a small differences in the PPP dollar rate used, but you get the idea - if we combine the two studies (as Dollar is happy to do), we see that the poverty reduction since the 1980s is pretty much a continuation of a trend that seemed to kick off in earnest in the 1950s.
If you decide that Bourguignon and Morrisson’s work is not comparable to Chen and Ravallion’s, then there is no way of knowing what happened to world poverty before 1981. If you allow the comparison, then the drop since the 1980s is, on the global level, pretty much a continuation of a long-term historical trend. Either way, Dollar simply should not be claiming that the drop since 1980 was the ‘first in history’.
As I mentioned above, when Dollar talks about the drop in the numbers of the ‘poor’, he is treating only those who live on less than one $1 a day as ‘poor’. Well, fine, but most people would also think that anyone living on less than $2 a day is poor too. By this definition, the number of poor people in the world has gone up by around 300 million since the early 1980s. Of course, $2 a day poverty has fallen in percentage terms, but again this is a continuation, with maybe a slight acceleration, of a long-term trend.
When I look at the figures Dollar uses, I’m far more pessimistic than he is. The reason is that the fall in global poverty since the 1980s was to a great extent an internally-driven Chinese phenomenon which now seems to have run its course. Look at the two graphs below, which show poverty rates using the $1 a day and $2 a day lines.


Including China, $1 a day poverty fell from 40% in 1981 to 21%, faster than the long-term trend implied by Bourguignon and Morrisson, but excluding China it fell from 32% to 23%, slower than that trend. It’s a similar story for the $2 a day rate, which excluding China hardly fell at all over the 20 years.
I’ve previously discussed how China’s poverty reduction does not seem to have anything to do with trade liberalisation, since its trade barriers were very high well into the 1990s. So was it down to ‘integrating’ with the world economy? It seems not: in another paper looking in great detail at China’s economic performance since the late 1970s, Chen and Ravallion argue that “the experience of 1981-2001 does not provide support for the view that China’s periods of expanding external trade brought more rapid poverty reduction”. Their analysis is as follows:
The country’s success against extreme poverty came in no small measure from picking some “low-lying fruit,” stemming from special historical circumstances. The Great Leap Forward and the Cultural Revolution had clearly left a legacy of pervasive and severe rural poverty by the mid 1970s. Yet much of the rural population that had been forced into collective farming (with weak incentives for work) could still remember how to farm individually. So there were some relatively easy “win-win” gains to be had by undoing these failed policies — by de-collectivizing agriculture and shifting the responsibility for farming to households. This brought huge gains to the country’s (and the world’s) poorest. But it was a one-time reform.
What can we expect in the future? China’s progress against poverty seems to be faltering and, if the latest figures for the most extreme poverty (less than $77 a year) are any indicator, may even have stalled completely.
If China isn’t reducing poverty anymore, is anyone else? I think India may take over as the main driver of poverty reduction, as around a third of its population still live on less than $1 a day (for a discussion of India’s performance which similarly comes down against trade as a prime driver in its impressive poverty reduction, see Rodrik and Subramanian). For that reason, global poverty rates will still probably continue to decline, though probably slower than the historical trend. And there seems to be no good reason to expect the astronomical level of poverty in Africa to fall. The least developed countries in the world are more ‘integrated’ into the world economy than the richest, using Dollar’s measure of trade over GDP (see p. 5 here.), but remain nevertheless desperately poor.
Contrary to Dollar’s analysis, it seems to me that the reduction in world poverty since the early 1980s had little to do with increased trade and nothing to do with trade liberalisation in poor countries. I am certainly not arguing that less trade will reduce poverty faster or that, for example, rich countries should not open up their markets more. What I am arguing is that the international economic system is not contributing significantly to poverty reduction, and if we want to eliminate the worst kinds of poverty, that will have to change.
[Edit: reading over this again, I think it was an over-generalisation to say that “most countries which have liberalised have seen few benefits”. It’s more like “most poor countries which have liberalised have seen few benefits as a result”, and I’ve changed it accordingly.]