There are, however, differences in the development of the services economy and infrastructural services across countries and regions.

In his 2005 book The Future for Investors , Jeremy Siegel argues that differences across countries in longevity will interact with differences in wealth levels to form a fundamental determinant of economic relations among countries.

In explaining the variation in levels of entrepreneurship across countries, much attention is devoted nowadays to differences in national attitudes and policies.

A more plausible explanation is that institutional differences in the ability to borrow dictate to some extent the disparity in savings rates across countries.

The application of bottom up approaches and methodologies must incorporate a significant degree of flexibility in order to account for substantial differences across countries and regions.

Yet these numbers are valuable because they are of exceptional quality and they correct systematically for relative price differences across countries, which sometimes leads to surprising results.

This hypothesis is supported by Giannetti and Simonov, who argue that differences in the prestige of entrepreneurs across municipalities may account for differences in levels of entrepreneurship.

These average rates mask stark differences between countries.

Significant differences persist between developed and developing countries.

Demographic differences are relevant not just in comparing Japan and the US, but also in explaining most of the differences in longer term growth rates across developed economies.

Notwithstanding differences within and across regions, the rationale frequently cited for embarking on revitalization efforts includes the following

Some patterns across countries are obvious.

Reactions differ across countries, of course.

No economy is an optimal currency area there are substantial differences among US states and even across Germany s Länder.

Regulatory diversity is indeed costly for bankers, who would have to adjust to differences in regulations across national borders.

But these aggregate figures obscure differences among countries and regions.

The underlying message that emerges from the regional and subregional assessments and analyses is that generalization of global and regional trends obscure vast differences across and within regions, subregions and, at times, even within countries.

The general lack of data to address gender issues and the differences in availability of such data across regions and across topics is partly a reflection of the following three factors

The differences between Arab and non Arab Muslim countries are striking.

This might also account in part for the differences between Muslim countries.

The changes highlighted the sharp differences between the two countries political systems.

But there are differences in the way in which neighbouring countries respond.

Differences persist over whether a security architecture or community should extend across Asia, or be confined to an ill defined East Asia.

Geographical variation in eating was primarily the result of differences in climate, political administration, and local customs that varied across the continent.

Despite all the differences that might exist between the two countries differences that are likely to grow there is no alternative to their alliance.

Fines against cartels are growing in severity across countries.

But there are also significant differences in levels of entrepreneurship within individual countries.

Today, vast differences remain in reproductive health status between rich and poor countries.

Between 1967 and 1973, he executed a large survey study regarding national values differences across the worldwide subsidiaries of this multinational corporation he compared the answers of 117,000 IBM matched employees samples on the same attitude survey in different countries.

There were, however, important differences in the reporting of census data on school attendance by sex and age among geographic regions and across development groups.

But the two countries situations include fundamental differences, as do political Islam s prospects for renewal.

One sees the same phenomenon across many rich countries as well.

The policy response to the slowdown in investment differs across countries.

There is no indication that the markets are dysfunctional and overstating the differences between countries creditworthiness.

Those initiatives must take into account the differences that persisted among countries' capacities to disseminate information.

In a recent study, Mariassunta Giannetti and Andrei Simonov of the Stockholm School of Economics show the magnitude of differences in levels of entrepreneurship across Swedish municipalities.

Countries must invest in equipment and infrastructure and share information across borders.

Countries are getting tougher because migration flows can be diverted across jurisdictions.

But this aggregate good does not have the same components across countries.

However, the viability of private participation in infrastructure may vary widely across sectors, countries, and regions within countries.

Hofstede's cultural dimensions enable users to distinguish countries but are not about differences between members of societies.

Economic historians like Ken Pomeranz rightly point out that before the Industrial Revolution, differences in median standards of living across the high civilizations of Eurasia were relatively small.

In general, the analysis shows a sharp disparity in reporting between geographic regions and across development groups that are reflective of the differences in overall national statistical capacity.

Opiates flow freely across borders into Iran, Pakistan, and other Central Asian countries.

Trade economists study the implications of globalization on inequality within and across countries.