Engineering method to predict Saturn V vehicle and launch complex environments due to rocket jet impingement Quarterly progress report no. 3, 1 Jan. - 31 Mar. 1965

Prediction of forces and heat loads of Saturn V vehicle and launch complex environments due to rocket jet plume impingemen

Algebraic Monte Carlo precedure reduces statistical analysis time and cost factors

Algebraic Monte Carlo procedure statistically analyzes performance parameters in large, complex systems. The individual effects of input variables can be isolated and individual input statistics can be changed without having to repeat the entire analysis

FDI and Trade in Portugal: a gravity analysis

This study investigates the relation between the stock of foreign direct investment (FDI) and the geographical pattern of trade flows in the Portuguese economy. The gravity model is applied to bilateral trade between Portugal and OECD countries plus Brazil from 1998 to 2000. The stock of inward FDI is positively related to trade suggesting the existence of complementary between the two. This effect is stronger on exports than on imports resulting in a positive impact on trade balance. It is also found that the stock of outward FDI has no significant relation either with Portuguese exports or imports. Finally, FDI helps to explain the above “normal” exports to the EU and the below “normal” imports from Candidate Countries.International Trade, Foreign Direct Investment, Gravity Model.

The Immigration and Trade Link in the European Union Integration Process

The aim of this paper is to analyse the link between immigration and trade among EU countries, particularly, in the context of the 2004 enlargement. The study tests whether the increase in immigrant stock from New Member States has any impact on the exports from the EU-15 to those markets or not. To that end the study applies an extended gravity model of international trade to panel data for three countries – Germany, Denmark and Portugal. The results show that increasing immigration from both New Member States and EU15 countries has a positive impact on the exports of both Portugal and Denmark. The results also suggest that less restrictive immigration policies have a positive impact on exports, and contribute to the normalization of exports of these countries to New Member States. Finally, these results do not hold in the case of Germany.International trade, immigration, European Union, economic integration, gravity model

A Panel Analysis of the FDI Impact on International Trade

This paper examines the relationship between Foreign Direct Investment (FDI) and international trade. Specifically, the relationship between the stocks of inward FDI and outward FDI, and Imports and Exports in the Portuguese economy. This paper also studies some technical problems associated with panel data, which have frequently been ignored in previous studies. The problems of serial and contemporaneous correlation have not been taken into account by a panel approach and, as we know, they can have an impact on estimates and statistical inferences. The results show that there exists a complementary relationship between trade and inward stock of FDI and also a country-specific effect on the corrected panel data of heteroscedasticity and correlation.FDI; Trade; Gravity Analysis; Panel Data

A Panel Analysis of the FDI Impact on International Trade

This paper examines the relationship between Foreign Direct Investment (FDI) and international trade. Specifically, the relationship between the stock of outward FDI, and inward FDI and Imports and Exports in the Portuguese economy. This paper also studies some technical problems associated with panel data have frequently been ignored in previous studies. The problems of serial and contemporaneous correlation have not been taken into account by a panel approach and, as we know, they can have an impact on estimates and statistical inferences. The results show that there exist a country-specific effect on the corrected panel data of heteroscedasticity and correltion and a complementary relationship between trade and inward stock of FDI.FDI, Trade, Gravity Analysis, Panel Data

Which Portuguese firms are more innovative? The importance of multinationals and exporters

In this study we test the trade Global Engagement hypothesis in which firms more globally engaged – either multinationals or exporters – are more innovative. The test is applied to 4818 Portuguese enterprises´ data for the period 2002-2004 through the use of the fourth Portuguese Community Innovation Survey. We estimated several Knowledge Production Functions assuming that knowledge outputs result from the combination of some knowledge inputs with the flow of ideas coming from existing stock of knowledge. We found that more internationally exposed firms create more knowledge output, than their domestic counterparts; indeed, more globalized firms use more inputs and have the opportunity to use a larger stock of knowledge. Notwithstand, the observed superiority of more internationally exposed firms is also the result of their globalized nature, not directly connected with knowledge inputs or information flows.Multinational firms, exporting, knowledge-production functions, Portugal

Economic performance and international trade engagement: the case of Portuguese manufacturing firms

By combining economic and financial data for Portuguese manufacturing firms with data on their exports and imports, we uncover some aspects of the relationship between international trade engagement and firms’ performance. In line with recent theoretical and empirical developments in the international trade literature: (i) we testify that Portuguese international trade is highly concentrated, especially on the import side, and both in inter- and intra-sector terms; (ii) we corroborate previous studies and theses according to which two-way traders outperform only importers, only exporters and above all domestic firms; (iii) we find that the greater the diversification of markets and goods (especially with regard to imports), the better the performance achieved by internationalised firms; (iv) we notice that the higher the intensity of international trade of firms (especially imports), the better the performance of firms; (v) we also present evidence that destination markets, for exports, and, origin markets, for imports, are also important in explaining firm performance.International trade, Firm performance, Diversification

Economic performance and international trade engagement: the case of Portuguese manufacturing firms

By combining economic and financial data for Portuguese manufacturing firms with data of their exports and imports, we uncover some aspects of the relationship between international trade engagement and firms’ performance. In line with recent theoretical and empirical developments in the international trade literature: (i) we testify that Portuguese international trade is highly concentrated, especially on the import side, and both in inter- and intra-sector terms; (ii) we corroborate previous studies and theses according to which two-way traders outperform only importers, only exporters and above all domestic firms; (iii) we find that the greater the diversification of markets and goods (especially with regard to imports) the better the performance achieved by internationalized firms; (iv) we also present evidence that destination markets, for exports, and, origin markets, for imports, are also important in explaining the performance of firms.International trade, Firm performance, Diversification