Trade in services : IT and task content

In this paper we investigate the determinants of the dramatic increase in services tradability focusing on the extensive margin of the phenomenon. We use balance sheet and firm-level service trade information over the period 1995-2005 provided by the National Bank of Belgium and we merge it with information on the evolution of information technology use and tasks performed by workers from the qualification and career survey provided by the BIBB-IAB. We show that technological change, measured either by the more intensive use of information technologies or by changes in the task content of jobs, has substantially contributed to the increase in the number of service-trading firms. Interestingly, we find evidence of a churning effect. While technological change has induced net entry into service trading, it has also increased the likelihood of both gross entry and exit of firms. Furthermore, our evidence suggests that due to the peculiar nature of services provision, the change in the tasks content of jobs is a better measure of technological change than the use of information technologies. Our results are robust to controlling for service trade liberalization and offshoring.trade in services; extensive margin; technological change; task content

Service Trade and Occupational Tasks: An Empirical Investigation

Using micro data for Belgium we investigate the relationship between occupational tasks changes and the rise of service trade. We focus the analysis on the extensive margin and look at the heterogeneous proliferation of firms involved in exports and imports of services across sectors characterized by different tasks changes patterns. Occupational tasks changes display an extremely consistent relationship with participation to service trade across firm groups pointing to strong churning effects. The change in analytical (interactive and routine cognitive) tasks intensity has a positive (negative) impact across the board meaning that, in industries characterized by larger changes, firms have experienced both higher (lower) likelihood of entry and exit. The negative relationship between the change in interactive tasks and service exports participation underlines the special role that proximity between demand and supply plays for services. Interestingly, we find exactly the opposite result (a positive relationship) between the extensive margin of goods exports and interactive tasks. Moreover, our analysis suggests that the change in IT use per se does not strike as being a key underlying force behind the increase in the extensive margin of service exports.Trade in services, extensive margin, occupational tasks, technological change

Crisis-proof services: Why trade in services did not suffer during the 2008-2009 collapse. National Bank of Belgium Working Paper No. 284

During the 2008-2009 crisis, trade in goods fell by almost 30%. In contrast, trade in business, telecommunication and financial services continued growing at their pre-crisis rates and only services related to transport declined. Using trade data at the firm-product-destination level for Belgium, I show that during the crisis the elasticity of services exports with respect to GDP growth in destination countries was significantly different from that of goods exports. In particular, the negative income shock in partner countries affected exports of goods but not exports of services. This difference is economically sizable: if goods exports had had the same elasticity to GDP growth as services exports, their fall during the 2008-2009 collapse would have been only half what was observed

Extension to Q(p) of p-adicand L functions and p-adic measures on Q(p)

This thesis project is dedicated to the study of some p-adic locally analytic objects which are classically de fined on a neighborhood of Zp in Cp, such as Morita's Gamma-function, the p-adic Riemann zeta function , and Kubota-Leopoldt's L-functions, and to the possibility of extending them to a neighborhood of all of Qp in Cp.ope

Services versus goods trade : a firm-level comparison

Using transaction data from Belgium, we provide a descriptive comparison of trade in goods and trade in services at the firm level. From a static perspective, we find that firms trading services are fewer and export and import smaller values than those trading goods. This is because they trade fewer products, with less countries, making fewer transactions and these gaps are only partially counterbalanced by larger transaction values. Instead, firms trading both services and goods are even rarer, but they account for a substantial share of total trade. In the time dimension, services traders experience higher entry and exit rates and a lower survival probability. However, the surviving firms grow more rapidly than those trading goods thanks to an increase in the number of transactions per product-market. Finally, we observe that firms that trade only services add also goods in their export and import basket and vice versa. This is a further important growth channel for firms in international markets

Crisis-proof services : why trade in services did not suffer during the 2008-2009 collapse

During the 2008-2009 crisis, trade in goods fell by almost 30%. In contrast, trade in business, telecommunication and financial services continued growing at their pre-crisis rates and only services related to transport declined. Using trade data at the firm-product-destination level for Belgium, I show that during the crisis the elasticity of services exports with respect to GDP growth in destination countries was significantly different from that of goods exports. In particular, the negative income shock in partner countries affected exports of goods but not exports of services. This difference is economically sizable: if goods exports had had the same elasticity to GDP growth as services exports, their fall during the 2008-2009 collapse would have been only half what was observed

Positioning and aligning CNTs by external magnetic field to assist localised epoxy cure

Abstract This work focuses on the generation of conductive networks through the localised alignment of nano fillers, such as multi-walled carbon nanotubes (MWCNTs). The feasibility of alignment and positioning of functionalised MWCNTs by external DC magnetic fields was investigated. The aim of this manipulation is to enhance resin curing through AC induction heating due to hysteresis losses from the nanotubes. Experimental analyses focused on in-depth assessment of the nanotube functionalisation, processing and characterisation of magnetic, rheological and cure kinetics properties of the MWCNT solution. The study has shown that an external magnetic field has great potential for positioning and alignment of CNTs. The study demonstrated potential for creating well-ordered architectures with an unprecedented level of control of network geometry. Magnetic characterisation indicated cobalt-plated nanotubes to be the most suitable candidate for magnetic alignment due to their high magnetic sensitivity. Epoxy/metal-plated CNT nanocomposite systems were validated by thermal analysis as induction heating mediums. The curing process could therefore be optimised by the use of dielectric resins. This study offers a first step towards the proof of concept of this technique as a novel repair technology.</jats:p

One way to the top: How services boost the demand for goods. National Bank of Belgium Working Paper No. 340

In this paper, we take advantage of a uniquely detailed dataset on firm-level exports of both goods and services to show that demand complementarities between services and goods enable firms to boost their manufacturing exports by also providing services. The positive causal effect of services accounts for up to 25% of the manufacturing exports of bi-exporters (i.e. the firms that export both goods and services), and 12% of overall goods exports from Belgium. We find that by associating services with their goods, bi-exporters increase both the quantities and the prices of their goods. To rationalize these findings, we develop a new model of oligopolistic competition featuring one-way complementarity between goods and services, product differentiation, and love for variety. By supplying services with their goods, firms increase their market share, and hence their market power and markup. The model then shows that exporting services acts as a demand shifter for firms, increasing the perceived quality of their products. Going back to the data, we find strong confirmation for this mechanism