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Does Portugal Have Its Own “Shortage Of Japanese” Problem?

In a number of posts recently I have highlighted the impact of declining workforces on economic growth (here, for example, or here, or here) and the way the policies persued to address the Euro debt crisis are having the impact of  accelerating the movement of young people away from the periphery and towards the core (here, or here) thus accelerating the decline in their working populations and exacerbating their growth problem. This issue has been already highlighted strongly in Japan’s ongoing crisis, and has to some extent come to be known as the “shortage of Japanese” problem following Paul Krugman’s memorable use of this expression to explain  why Japan’s economic performance seemed so poor to so many.

Recently I came across a post by Portuguese blogger Valter Martins, where he looks in some depth at what is happening in Portugal. Really, despite the use of some technical details his argument is extraordinarily straightforward, in fact it is as elegant as it is simple. What he points out is that population growth rates serve as some kind of “quick and dirty” proxy for GDP growth rates, and growth in working age population serves equally well as a quick proxy for growth in GDP per capita. Any simple growth accounting process breaks growth down into a labour input component and a productivity component, so if your labour component turns negative, even to get the same growth your productivity component has to be greater. For societies that have considerable difficulty raising productivity in the first place this process of working population decline is going to make an already Herculean task even more difficult.

In addition Valter picks up a point few researchers seem to have noticed up to now, that working age population in Portugal just surprisingly peaked. Natural population dynamics have long been stationary in Portugal, and emigration has long-standing and deep roots. During the first eight years of this century the population loss caused by emigration (nearly all young educated Portuguese) was masked by the steady influx of immigrants looking for work. But now the country is in deep recession the immigrants aren’t coming. Indeed  some are even leaving, while the rate of emigration by Portuguese nationals has accelerated and continues to accelerate, sending working age population (and just as importantly its age distribution) on an increasingly negative path.

During the years of austerity we have become familiar with the phenomenon that as fiscal spending is cut growth falls making the achievement of fiscal targets even more difficult. Well something similar seems to be happening with migration movements, as part of the benefit to long term growth that accrues from making structural reforms disappears on the other side of the ledger as the workforce shrinks.   Again we are in danger of running round and round in ever diminishing circles.

Reading Valter’s post I became impressed with the power of his argument and was struck by the importance of what he had discovered. I therefore took the unusual step of asking him to translate the piece and offering to publish it on my blog. So, without more ado, here is:

Is Portugal Facing A “Shortage Of Japanese”?

Guest Post by Valter Martins
So, about the slow growth/debt connection: I’ve done a quick and dirty mini-RR for the period 1950-2007 ……focusing only on the G7……and if you look at it, you see that most of the apparent relationship is coming from Italy and Japan……And it’s quite clear from the history that both Italy and (especially) Japan ran up high debts as a consequence of their growth slowdowns, not the other way around.” – Paul Krugman, Reinhart-Rogoff, Continued
Despite so much intense debate about the ailment from which Portugal suffers, and the mountain of sacrifices currently being borne by the Portuguese people one fact has gone virtually unnoticed in amongst all the noise – for the first time, at least in the modern era, Portugal’s working age population has started to shrink. Demography and its possible impact on economic growth is a topic which has been largely ignored by practitioners of economic science in recent decades as population growth has by-and-large been on an upward trend. However, as we enter a new period in human history, one in which the upward trend has shifted towards stagnation or even in some cases towards long run decline, the economic and financial implications of this transformation can no longer be ignored. As Nobel economist Paul Krugman indicates in the above quote, some countries have large debt simply because they have low growth.

So what is the common thread that runs through these low-growth high-debt countries? Could it be decelerating labour force growth and eventual labour force contraction? The cases of Italy and Japan are well known. In the case of Portugal, it will be argued here, demographic trends can not only explain a significant part of the slow economic growth the country experienced during the first decade of this century, they can also help us understand the depth of the current recession. More important still, we need to think about the consequences of this continuing lose-lose dynamic for the country’s future in both the short and much longer term.

Economists didn’t always take the view that population dynamics were irrelevant to economic performance. The 1930s gave birth to a serious debate about the possible problem that would arise if many decades of strong population growth were followed by population stagnation and then decline, a debate which was provoked by the fact that birthrates in a number of countries fell below replacement level for the first time in human history during the economic depression. And among the names of those economists who took the problem seriously enough to think and write about it was none other than John Maynard Keynes.

There are, indeed, several important social consequences already predictable as a result of a rise in population being changed into a decline. But my object this evening is to deal, in particular, with one outstanding economic consequence of this impending change; if, that is to say, I can, for a moment, persuade you sufficiently to depart from the established conventions of your mind as to accept the idea that the future will differ from the past.” J.M. Keynes, Eugen Rev. 1937 April; 29(1): 13–17.

While the phenomenon has arrived largely unnoticed Portugal’s total population has long been near to stationary.

As can be seen in the above chart, Portugal’s population has been struggling to find growth momentum since the mid 1980’s (the first time numbers actually dipped downwards) but the years 2010/2011 seem to mark a more fundamental turning point, since it was in that time interval that Portugal’s population started on a long, and possibly irreversible, path of decline. Having long had a total fertility rate of below 1.5 this was a more than predictable outcome, and one that should have been expected ever since the total fertility rate fell (and stayed) below the 2.1 replacement level in 1982.

As is well known, population change is comprised of two major components: natural growth and net migration. Natural growth, births minus deaths, became negative in 2007 and thereafter population growth has become exclusively dependent on having sufficient positive net migration. Up to 2010 this condition was satisfied given the continuing influx of immigrants into the country as can be seen in the chart below.

However, since the onset of the 2008 recession, not only have the immigration flows reversed completely, but emigration has started to increase again, thus reanimating a trend that has been constantly present in Portuguese history over decades, even centuries. This is perhaps the most critical factor driving the recent population decline. In fact the decline would have occurred much earlier had it not been for the return of thousands of refugees from the Portuguese colonies in the 1974-1981 period.

According to the European Commission’s 2012 Ageing Report, projections for the Portuguese population during the period 2010 – 2060 anticipated that population would peak in 2034, but as we have seen, the latest data show the population unexpectedly reached its peak in 2010 (total population, previous chart), the year in which the population began to decrease (a similar phenomenon seems to have occurred in Spain in 2012, with again a reversal in migrant flows in an otherwise stagnant population being the trigger). This fact that this turnaround comes as a surprise is clearly the result over optimistic assumptions on the net migration front since the numbers for natural growth are well known and change little (although birth numbers are now dropping in many EU countries under the impact of the long recession). Clearly the unexpected factor here is the severity of the recession from which the country is suffering and the size of the exodus of young people who are leaving.

Just to highlight even more the speed with which all this is happening, in Japan, the interval between the beginning of the decline of the working age population and the beginning of total population decline was a full decade. In Portugal this interval was only two years.

Even more relevant than the decline in total population for the purpose of the present discussion is the decline in the working-age population. While the former gives us a good proxy for domestic consumption, it is the later which is important in terms of potential national output. All other things being equal a reduction in the working-age population means a reduction in output. Therefore, the most important detail to catch from the chart above is that the working-age population, defined as the population with ages ranging from 15-64, declined for the first time in Portugal between 2008 and 2009. As highlighted by both Daniel Gros and Paul Krugman if you want to compare economic growth performance as between countries with growing populations and those with declining ones the best indicator to use is undoubtedly GDP per Working Age Person (GDP/WAP).

In the Portuguese case if we take this ratio and compare it with both Real GDP growth and Working Age Population change (my calculations VM), we can get an impression of how variations in the Working Age Population affect the economic growth of a country. Surprisingly or otherwise, the data for Portugal viewed graphically not only confirms the existence of the “workforce effect” – the relationship seen between Real GDP and GDP/WAP – but also suggests that Portugal has already passed the point where this effect is beginning to have a negative impact on GDP growth.

As can be seen in the above chart, until 2008 the growth rate of Real GDP was always higher than the rate for GDP/WAP offering a strong suggestion that labour force growth was having a positive impact on GDP growth. It is noteworthy, however, that both in the period 1986 – 1991 and in the period 2003 – 2008, the growth rates of Real GDP and GDP/WAP almost overlapped. This phenomenon coincided with very low or zero rates of working age population growth and as such the “workforce effect” was mostly neutral. The first of these periods, 1986 – 1991, the stagnation in the workforce was the direct result of the increase in emigration that followed the entry of Portugal in the European Union. The second one coincides with the arrival of the turning point in long term WAP growth, as the size of the working age population irrevocably turns negative.

Indeed, during this early period of emigration towards the EU Portugal’s total population decreased, as shown in the chart Population by age group (above, blue line), but at the time, since the population in general was much younger, and many more new labour force entrants were arriving at working age, the growth rate of the workforce remained slightly positive. In other words, there were still enough Portuguese entering the labour market to replace those who were leaving it (either to retire or to seek a future abroad). In the second period, 2003 – 2008, the large exit of Portuguese nationals, about 700,000 between 1998 and 2008 according to research by the now Economy and Employment Minister Álvaro Santos Pereira, was to some extent offset by an inflow of immigrants, but these were only sufficient in number to maintain the workforce at a stationary level.

All this calm and stability disappeared, however, after 2008 when the growth rate of Working Age Population turned negative, i.e. the labour force began to decline (see graph below). Where the growth rates of Real GDP and GDP/WAP overlap we can surmise that working age population change is having no effect on real GDP growth. Subsequently, however, the growth rate of GDP/WAP becomes higher than the growth rate of Real GDP and thus the “workforce effect” starts to act as a drag on the economy steadily bringing the potential overall growth rate down. In other words, Portugal is now suffering from a “Shortage of Japanese” as Edward Hugh has called the phenomenon, after Paul Krugman originally coined the term to describe the underlying problem which has been afflicting the Japanese economy since the mid-1990s.

The fact that the three lines in the above chart happen to intersect at zero is perhaps just an unfortunate coincidence but is consequences are disastrous, since the downward trend that was already evident accelerated greatly after the onset of the recession. The resulting rise in unemployment not only caused a collapse in the immigration flow, it also led to a sharp increase in emigration. As a result workforce shrinkage intensified even further, as can be seen in the above chart by looking at the growing distance between the Real GDP and the GDP/WAP lines. That is, if the workforce had remained stationary the economy would be growing at similar rates to the GDP/WAP, i.e. above the current level as indeed happened in the period 2003 – 2008.

Naturally, the argument can be advanced here that the recession is a cyclical phenomenon, and this is surely true, there is an ongoing cycle, but the argument being used refers to long term trends – a reversal in direction (or change of sign) for inputs from the labour force component brings down the overall trend growth rate making booms weaker and recessions deeper, all other things being equal. This would seem to be a simple conclusion which stems from elementary growth accounting theory. Naturally, there are other factors which contribute to growth, like multi factor productivity, but again other things being equal you would need more of this to achieve the same growth rate as before under conditions of weakening in the labour force growth component.

Thus the argument is not that economic growth becomes impossible with a stagnant or slowly declining workforce, but simply that it becomes harder to achieve because it relies more on other factors, such as productivity and raising participation rates, but these change slowly over time, and more so in already developed countries. As such trend growth will surely steadily fall. This can be clearly seen in the following chart: while workforce growth was an important source of growth when Portugal was a developing country, its importance fell back as the workforce started to stagnate even as Portugal was approaching converge with other developed countries in terms of productivity. Other factors took over and increased their importance steadily as the economy started to converge with more advanced ones. Now that this catch up process seems to have come to a standstill as well the economy simply can’t growth, at least at rates considered normal. With a stagnant workforce, low growth or no growth is the new normal.

Following standard growth accounting procedures, during the 1970s workforce growth accounted for more than half of Portuguese economic growth (see chart above, my calculations VM), and this contribution had fallen to only 16% in the first decade of this century. However, since 2008 not only has this contribution reversed sign but also the magnitude of the negative effect has begun to increase rapidly. Such that, by 2011 the “workforce effect” could be considered to explain more than 29% of the GDP decline. This “negative drag” will continue, and the effect possibly become greater, as the working age population shrinks further. Had the workforce remained stationary we could surmise the 2010 recovery would have been more pronounced and the 2011 recession wouldn’t have been so deep. This is the principal reason why official growth forecasts have been being constantly revised to the downside, and this will continue to happen until the models the forecasters use adequately incorporate the effects of population decline on economic growth. Adding insult to injury, ignorance of the existence of such effects recently led Portugal’s Prime Minister Pedro Passos Coelho to suggested young unemployed Portuguese resort to emigration as an escape route from the crisis, advice thousands have now followed thus making a bad situation even worse.

Economic growth in Portugal appears to be on a long downward trend, a trend which will only be made worse by the onset of the decline in its working age population. Economic output is now at 2001 levels and thus we can now conclude that the last decade has been completely lost. More worryingly though, is that after such a bad start to this decade, it might not be unreasonable to conclude that this one is also in the process of being lost too.

At best the economy will stagnate in the years to come but the possibility is there that it will continue to regress – especially if nothing is done to stem the outflow of young educated people – and by 2019 it might even be back somewhere in the 1990’s. This is scenario simply cannot be excluded since, in addition to all the other problems the country faces, a situation that would be in any circumstance challenging is now being aggravated by one more variable whose contribution cannot be easily reversed in the short term – the decrease in the working age population. More than the fact in itself, it is the speed at which this is happening which is alarming, and the fact that policymakers appear unaware of the problem. In analyzing the low Portuguese economic growth issue the decrease in the country’s working age population can no longer be ignored! Or at least it is hoped that this will be one of the outcomes of this short report.

To return to where we started, Keynes concluded in his pioneering presentation that a stationary or slowly declining population could increase its standard of life while preserving the institutions society values most if, and only if, the process was managed with the necessary strength and wisdom. On the contrary, he argued, a rapid decline in population, of the kind that we are seeing in Portugal today, would almost inevitably result in a serious decline in living standards and a breakdown in highly valued social security mechanisms. The distinction Keynes drew some 80 years ago between rapid and managed rates of decline seems plausible, reasonable and highly relevant today. What we now need to see are urgent measures taken – initiated by the EU and the IMF – to counter the exodus which lies behind this dramatic decline which is occurring before our eyes, measures which at least try to decrease its speed, because once a process like this gains full velocity it will be very difficult to stop, and we have already seen it gather considerable traction. Ireland is a pointer and a great example to learn from, since it took that country more than a century to recover the population decline precipitated by the natural disaster which hit the country in the middle of the nineteenth century.

Postscript From Edward

I have established a dedicated Facebook page to campaign for the EU to take the issue of  emigration from countries on Europe’s periphery more seriously, in particular by insisting member states measure the problem more adequately and having Eurostat incorporate population migrations as an indicator in the Macroeconomic Imbalance Procedure Scoreboard in just the same way current account balances are. If you agree with me that this is a significant problem that needs to be given more importance then please take the time to click “like” on the page. I realize it is a tiny initiative in the face of what could become a huge problem, but sometime great things from little seeds to grow.

9 Responses to “Does Portugal Have Its Own “Shortage Of Japanese” Problem?”

RikMay 13th, 2013 at 5:37 am

You have to add the quality aspect of emigration and immigration as well.
Likely mainly well educated with proper languageskills move out. While at the other end largely semi- or uneducated come in. Another no go for getting your productivity up (or closing the gap with Germany and Co).

Probably worse for Portugal as it effectively is still more a EM than worldclass and with competition in that part of the spectrum rising with enormous speeds.

Edward Hugh Edward_HughMay 13th, 2013 at 6:53 am

Definitely Rik, the human capital exchange is highly negative. This has also been the picture in Italy during the first decade, and goes a long way to explaining why even with a million extra people working the increase in economic growth was minimal – they were trading downwards in skills.

I disagree about these countries in Southern Europe being EMs though, since EMs are still developing, and their future is generally more positive than their past. These EU periphery countries have now passed their peak. the labour force has entered long term decline. That is the whole point of this post.

A decade from now population and workforce decline will characterise most developed world economies ex-US. It seems to be inevitable that economies will eventually shrink. The debate in Japan is about how we manage this process.

But, in the case of relatively poor countries, like those in Eastern Europe, we may have to face issues of the very viability of countries, which is the point I tried to raise in my recent "suitcase mood" post.

TomMay 13th, 2013 at 10:35 am

What the GDP/WAP chart actually shows is a collapse of productivity growth since the late '90s. It looks like collapsing productivity growth caused the reversal of population growth, not the other way around.

So what caused the collapse of productivity growth? Was it the "brain drain" to rest of the EU? Sure, in part. Weren't there other growth-stifling policies, which perhaps also motivated the "brain drain"? This is where I think you should be focusing your attention.

Population can't grow forever. Personally I welcome the global population growth slowdown and hope for zero global population growth ASAP. It's true as Keynes wrote that slower population growth demands less total savings. To boost standards of living in a static population, savings must be directed into advancing technology (but not necessarily into longer production cycles, as Keynes argues). My feeling is that market processes will make those adjustments. I strongly disagree with Keynes, Krugman and Abe that manipulating interest rates or applying fiscal stimulus will help when the reasons for slow growth are structural. Looking at Portugal's GDP/WAP chart, I can't see how it can be argued that Portugal's growth collapse since the '90s is anything but structural. Population decline appears to be a secondary, exacerbating problem, not a root cause.

Edward Hugh Edward_HughMay 13th, 2013 at 11:06 am

Hi Tom,

"It looks like collapsing productivity growth caused the reversal of population growth, not the other way around."

Well, population growth (as opposed to working age population growth) came stopped due to the collapse in fertility. Full stop. I don't think there is more to that story.

The growth in working age population came to an end due to the recession, that is also clear, when the delicate balance between new immigrants and new emigrants was decisively broken. Getting into why the recession is so serious on Europe's periphery would take us beyond the bounds of the arguments in this post, which are about long term growth potential.

"Weren't there other growth-stifling policies, which perhaps also motivated the "brain drain"? "

Of course. I don't think anywhere in this analysis Valter argues otherwise, or speaks out against policies which help improve productivity and growth. He is just pointing out two things:

a) that the decline in WAP may now be irreversible,

and b) this decline will affect Portugal's possibility of growing in the longer term, since even more productivity will be needed from an even older and more conservative population. That's where the numbers start not to add up.

Take pension issues. Really the best structural reform available would be to write down the expectations of pensioners about how much they will receive. But that is politically impossible (same case Spain). A majority of voters are over 50, and the proportions of those who vote in the 60 to 70 age range is higher than it is in the 20 to 30 one. So some changes become virtually impossible.

Result, instead of lowering pensions or increasing pension contributions the working life is extended. This might make sense in a society with only 5% unemployment, but it makes no sense at all in a society like Portugal with unemployment approaching 20%, and youth unemployment over 50%. More young people simply leave due to the lack of career openings. You are cutting your leg off to save a toe. In addition extending the working life is productivity negative, even if I am certainly not against it as a long term measure. First Portugal needs to generate work for the children it has, and attract immigrants to sustain the workforce in the future. So short term I would simply reduce pensions to balance the fund and not delay the entry of young people into work.

I don't agree with you that these issues are irrelevant. And there are plenty more I could mention.

"Population can't grow forever". I absolutely agree. Neither can GDP, anywhere. It is only a matter of time. The big issue is inter-generational debt. You can keep passing higher and higher debt on to smaller and smaller numbers of working people, especially as GDP shrinks. It is only a matter of time. We can be happy with less.

But as Keynes foresaw, we have to attempt to avoid dramatic declines. This is what is happening in Portugal, and the outcome is in part being precipitated by EU approved policies. Some countries will end up dying (see my suitcase mood post on Ukraine) we would like to hope that Portugal will not be one of them.

Edward Hugh Edward_HughMay 13th, 2013 at 11:28 am

Incidentally, here's an extract from a speech by the former Bank of Japan governor, Masaaki Shirakawa, which makes essentially the same point Valter does.

The [neo-classical] economic growth model supposes that everyone works at a given intensity. With a labor-augmenting technological change, in the long run steady state, per capita variables grow at the rate of technological change, and aggregate variables grow at the rate equal to the sum of population growth and technological change. In aging economies, including Japan, where the working-age population has started decreasing, the labor force also declines, given the participation rate being held constant. Because the scarce labor force imposes a natural constraint on labor supply, the marginal product of capital declines accordingly. As a result, macroeconomic growth would be impeded. With this idea in mind, the Japanese economic data in the past decade indicates that the workforce declined by 0.3 percent point, labor productivity increased by 0.8 percent point, and they add up to real GDP growth rate increase by 0.6 percent.

TomMay 14th, 2013 at 2:41 am

Hi, Hugh, thanks. I understood all that you've added here. I also understand that Portugal's long-term growth rate wasn't the intended topic. What I'm saying is that it is anyway the unspoken topic, like it or not. All of the problems discussed here including emigration are flowing from Portugal's low long-term growth rate. Reduced fertility is a global phenomenon and in my view not a problem.

I understand that :Portugal's reversal of immigration appeared with the recession, but it looks to me like the problem was actually a collapse of productivity growth in the early 2000s. The lower your long-term growth rate, the worse things happen during recessions.

Generally I think everybody should be focused more on the productivity angle and somewhat less on the population angle. GDP growth does not have to end, so long as technology keeps advancing. Even if the global population someday shrinks, GDP can grow if productivity growth exceeds the reduction of population. Likewise it's actually possible for GDP to grow despite dwindling resources. Real GDP growth sums quantity and quality changes, involving a lot of subjectivity (eg how much better or worse is this year's Corolla than last year's?). Anyway, it's our standards of living that we really care about, of which GDP is only a rough reflection.

Shrinking population due to low fertility does pose special problems for economics and finance, which are worthy of attention. Less savings and investment are needed and investment needs to be more targeted. I think markets can solve that. I don't see why shrinking population due to low fertility is by itself a reason for standards of living to deteriorate or for their rate of improvement to slow.

People fleeing a country due to lack of opportunities is an entirely different matter. Then the topic is the lack of opportunities. Portugal is a slightly more complex story because it was seeing emigration of the skilled and immigration of the unskilled at the same time, and now the latter has disappeared or reversed resulting in net emigration. That just goes to show that Portugal focused on the wrong things, which produced low, fragile growth.

Edward Hugh Edward_HughMay 14th, 2013 at 10:46 am

Hi again,

And just briefly because you have your view, and I have mine.

"Reduced fertility is a global phenomenon and in my view not a problem"

Maybe not. Probably it is inevitable, but it is a problem for our current economic system due to the issue of generation shrinkage and legacy debt coupled with underfunded pension and health systems. This is the challenge facing us.

"Even if the global population someday shrinks, GDP can grow if productivity growth exceeds the reduction of population".

This is a big if. Productivity would have to do a lot better than it has done over the last half century in mature economies. Catch up economies obviously have high levels of productivity growth.

The thing is, with structural "under-demand", technology is as likely to accelerate deflation as anything else. Japan is a world leader in robotics, and hardly backward when it comes to innovation. I'm not convinced at all of the "prductivity can solve everything argument". I'd like to see it in operation in at least one rapidly shrinking workforce society first.

"Less savings and investment are needed and investment needs to be more targeted. I think markets can solve that".

I'd be interested for some pointers as to how. The excess savings and lack of investment we see seem to be directly related to population ageing, following the simple version of the Modigliani Life Cycle model.

TomMay 14th, 2013 at 1:42 pm

Thanks. I agree with a lot of this, especially the problem of underfunded pensions and in some places health systems, although that's caused more by living longer than by having less kids.

I'm not worried by technology-driven deflation. It doesn't discourage consumption. Even mild general consumer price deflation doesn't much discourage consumption, so long as real interest rates are not unreasonably high. A 1% deflation rate and zero demand deposit interest rate is no more discouraging of consumption than a 2% inflation rate and 3% demand deposit interest rate.

I think productivity in theory can solve everything, but in practice can only solve some things. Nobody's perfect.

By "excess savings and lack of investment" I assume you mean Japan, since that implies a current account surplus and no one's much worried about northern Europe (maybe because it's had decent productivity growth?). It's true that Japan has traditionally been a high savings country and for decades it has largely exported that savings. Japan Inc's actually a very successful foreign investor and its foreign earnings are a large part of what has kept the yen so strong till recently.

My understanding of Modigliani's theory as it relates to Japan is that it so far has correctly predicted a declining savings rate as the population ages. This works fine with population shrinking but not so well with the need to support larger ratios of retired to working. The only solutions to the latter problem are more savings and investment, or later retirement.

The market mechanisms that adjust savings and investment to the needed level are returns on investment and interest rates. The more S&I needed, the higher ROI and IR. The less needed, the lower.

Best regards.

BWildsMay 25th, 2013 at 11:47 am

The GDP of a country is only one way to measure it's ability to produce wealth. A work force can shrink and still have only a small or no effect on the ability to produce that wealth. The problem is that it often results in less demand from money moving about and thus the appearance of a decline.

A better way to view a nations debt would be to look at it divided by the population realizing many of these men, women, or children can not or do not and thus will be unable to pay their share. If the number produced is massive, unsustainable, and on the increase in relation to incomes and private wealth, it is safe to assume a problem exist.

I did this on the deficit in America in a post on my blog site. The post shows that these numbers can be very ugly. Other countries that have encountered this problem will agree when the issue has to be addressed. The result is that the government must break promised made. For more on the ugly math see below,