The supply and demand for imports and exports in a simultaneous model

Previous studies on the behaviour of aggregate exports and imports have tended to ignore the simultaneous relationship between quantity and price. This paper investigates the price responsiveness of export and import demand and supply in eight African countries. The results indicate that export demand price elasticities are smaller when the sample is African. The import supply and demand elasticities were found to be generally large. The Marshall–Lerner condition of balance of payment stability is found to be easily satisfied. A positively sloped function of export supply is found to exist for a majority of countries in the sample. The average time lag of export supply is found to be about a year. The disequilibrium model is found to be more appropriate for import demand, import supply and export supply.     

The domestic content of imports and the foreign content of exports

When a country imports goods that have been assembled abroad, some amount of the labor and capital services embodied in those goods may originally be from the country that is now importing them. Similarly, some of the value added of a country's exports may be foreign in origin. For the median country in my sample of 14, I calculate that 21.5% of imported labor services are domestic labor, 17.7% of imported capital services are domestic capital, 12.3% of exported labor services are foreign labor, and 23.3% of exported capital services are foreign capital.     

Determinants of the demand for imports of Venezuela

In this study we use disaggregated annual data to estimate real income and relative price elasticities of demand for imports of Venezuela. After comparing our estimates with those of previous studies, we conclude that (1) Venezuela has made progress in developing domestic substitutes for imports, and (2) the degree of ‘openness’ in Venezuela increased after 1961. We also find evidence that during the period 1974–1979, the increase in the market value of Venezuela's oil reserves led to an increase in all categories of imports.     

The role of exports,FDI and imports in development: evidence from Sub-Saharan African countries

The disappointing economic performance of Sub-Saharan African (SSA) economies in the late 1980s prompted reforms in foreign trade and Foreign Direct Investment (FDI) in the early 1990s. Using the Autoregressive Distributed Lag (ARDL) approach and Pedroni panel estimation procedures that allow for heterogeneity, this study found that exports and FDI have a significant impact on economic growth. Granger-type causality tests show the interrelatedness of exports, FDI, imports and income variables. The results also provide evidence of a two-stage causal chain of exports, imports and income. This article calls for more market-oriented policy reforms in SSA countries.     

Trade distance functions and the derivation of inverse demand for imports

This article introduces a new representation of trade preferences termed as the trade distance function, which measures the maximum amount by which import quantities must be deflated or inflated to reach the indifference surface. The properties of this function are discussed and employed to derive systems of inverse demand for imported goods. We illustrate its usefulness by proposing two new parametric forms of trade distance functions. While the trade distance function directly yields Hicksian inverse demand functions of imports, they usually lack closed-form representations in terms of observable variables. This problem, however, need not hinder estimation and could be solved by using the numerical inversion estimation method. Results generally indicate that the suggested modelling and estimation methods are operationally, implying that the trade distance function approach is a promising tool of the empirical analysis of import demands subjected to tight theoretical conditions.     

Profitability,concentration, imports and exports: the case of Taiwan's midstream petrochemical industries

Based on an open-economy oligopoly model, causalities among domestic firms’ price-cost margin (PCM), domestic concentration, import and export shares are derived and a simultaneous-equation system is established. By utilizing the 1989–1997 data of Taiwan's midstream petrochemical industries, three-stage least squares is used to estimate the system. The empirical results confirm the derived results, and demonstrate: (1) there exist simultaneous relationships among domestic PCM, domestic concentration, import and export shares; (2) import concentration affects domestic concentration positively, but affects domestic PCM, import and export shares negatively; (3) diversifying international markets improves domestic firms’ PCM; (4) domestic firms seem to be in a situation of collusion.     

The demand for imports: Estimates of bilateral trade flows

This paper provides estimates, using a traditional import demand model, of the demand for imports on a bilateral basis among nine industrialized nations. These estimates provide greater detail about price and income elasticities, but in general are consistent with earlier, aggregate import demand studies with respect to conclusions about the effects of secular and cyclical income changes on trade balances and whether sufficiently high price elasticities are present to insure that the Marshall-Lerner stability condition is met.     

The demand for liquid assets and involvement in exports; some empirical results

The hypothesis that the greater a firm's involvement in exports, the greater will be that firm's demand for liquid assets, is empirically tested in this paper. The results are supportive of the hypothesis. In addition it was found that firms owned by labor cooperatives have lower demand for liquid assets than other firms.     

The impact of trade liberalisation on exports, imports and the balance of payments of developing countries

This paper uses panel data and times series/cross section analysis to estimate the effect of trade liberalisation on export growth, import growth, the balance of trade and the balance of payments for a sample of 22 developing countries that have adopted trade liberalisation policies since the mid-1970s. We find that liberalisation stimulated export growth but raised import growth by more, leading to a worsening of the balance of trade and payments. To the extent that this has constrained the growth of output and living standards, the findings have important implications for the sequencing and degree of liberalisation.     

Specifying differential cyclical response in economic time series: Capacity utilization and demand for imports

This paper begins with a discussion of several techniques currently employed to specify non-reversible relationships and shows that many of the more popular techniques lead to biased slope and intercept estimates when the data have a natural order and the purpose is to estimate differential response over a series of cycles. Next a general specification of a non-reversible relationships is proposed. This variable partitioning procedure has two advantages over currently employed techniques: (1) It allows unbiased estimation of slope and intercept parameters; (2) It implies a set of joint hypotheses which can be tested to deduce the appropriate adjustment path. The suggested procedure is then applied to an investigation of the effect of capacity utilization on US import demand. Employing a model posited by Gregory [5] but correcting his inappropriate specification of capacity utilization's ratchet effect, we find a significant, non-reversible relationship between capacity utilization and import demand. This result is precisely the opposite of that originally inferred by Gregory. We conclude that inappropriate specification of non-reversible relationships can lead to incorrect forecasts and policy decisions and that these problems can be corrected if our specification procedure is employed.     

Causal relationship between apparel exports and macroeconomic factors

Apparel exports make a significant contribution to economic growth in major apparel exporting economies such as Bangladesh, Sri Lanka and Vietnam. This study aims to investigate the causal relationship between apparel export growth and its determinants such as GDP growth, infrastructure, financial development, foreign direct investment (FDI) and labour productivity using panel data from 11 major apparel exporting countries for the period 1996 to 2013. The results confirm a long-run equilibrium association among the variables and reveal that GDP growth, infrastructure, financial development, FDI, and labour productivity have a significant positive influence on apparel export growth. Furthermore, the heterogeneous panel non-causality test results suggest that GDP growth, infrastructure and labour productivity contribute to apparel export growth in the short-run. These findings have several policy implications for the governments of the countries under study.     

Causal analyses between exports and economic growth in developing countries

This study investigates the prima facie causal relationship between the exports and output growth in 30 developing countries over the period from 1960 to 1988 in a multivariate framework. The information set considered for the output and exports models are ω = (domestic output, exports, labour and capital), and ω = (exports, domestic output, exchange rate and foreign output) respectively. This study indentities a feedback prima facie causal relationship between exports and output growth in five countries, export growth prima facie causes output growth in another six countries; output growth prima facie causes export growth in a further eight countries; and no causal relationship was observed between export growth and output growth in the remaining 11 countries. We also found that in 15 countries the foreign exchange rate prima facie caused export growth, and that in 12 countries world output caused export growth.     

Exploring the nexus between bank market power and exports

Although the literature underlines the importance of finance in international trade, no prior study has examined the causal links between market power in banking and export performance. Using a world sample over the 1997-2010 period, and accounting for both observed and unobserved country heterogeneity, we find a positive effect of bank market power on exports, especially in high-income countries. We also document that this export-enhancing effect is more potent in informationally opaque markets. Our findings accord with information hypothesis which suggests that market power in banking induces stronger bank-firm relationships which can generate benefits for both borrowers and lenders. Policy interventions should, therefore, promote the supply of relationship lending as a means to mitigate informational asymmetries in the export market.     

On the relationship between intermediate input imports and export quality in China

This paper studies the connection between intermediate input imports and firms’ export quality using firm‐level data from 2000 to 2007. Our regression results show that intermediate input imports promote manufacturing firms’ export quality through ‘variety effects’ and ‘innovation effects’, though the effects are significantly different among firms with different characteristics, and the magnitude of these effects differs across import sources and the quality of imported intermediate inputs themselves. Moreover, we find that a good institutional environment is conducive to the strengthening of the positive influence of intermediate input imports on export quality. Furthermore, the dynamic decomposition demonstrates that the reallocation effect is the key force through which imported inputs boost industrial aggregate quality growth. Taken together, these results suggest that product upgrading facilitated by quality embedded in imported intermediate inputs, a good institutional environment and market share reallocation help Chinese firms to improve the quality of their export products.     

The effects of exchange rate uncertainty on exports

We investigate the effects of exchange rate uncertainty on exports in the context of a multivariate framework in which a structural open economy vector autoregression is modified to accommodate multivariate GARCH-in-Mean errors, as detailed in Elder (Elder, J., 2004. Another perspective on the effects of inflation uncertainty. Journal of Money, Credit, and Banking 36, 912–928). Our measure of exchange rate uncertainty is the conditional standard deviation of the forecast error of the change in the exchange rate. We isolate the effects of exchange rate uncertainty on exports and also analyze how accounting for exchange rate uncertainty affects the response of exports to exchange rate shocks. We estimate the model using aggregate monthly data for the United States, over the flexible exchange rate period (since 1973). We use full information maximum likelihood estimation procedures and find that exchange rate uncertainty has a negative and significant effect on US exports. We also find that accounting for exchange rate uncertainty tends to strengthen the dynamic response of exports to shocks in the exchange rate and that exports respond asymmetrically to positive and negative exchange rate shocks of equal magnitude.     

Causality between exports,world income and economic growth in Pakistan

This paper investigates the direction of causation between GDP representing economic growth, exports and its different categories, imports and world income. After experiencing vigorous import-substitution in the past decades, Pakistan adopted an outward-looking strategy in the late 1980s with an emphasis on export promotion. A strong and stable relationship between GDP and exports and bi-directional causality between manufactured exports and GDP has been found. Export promotion policy is pursued consistently with an emphasis on manufactured exports and this is most likely to contribute adequately to economic growth in the long run.     

Long-run income and price elasticities of demand for Colombian nontraditional exports: a multivariate cointegration framework

A long run income and price elasticities of demand is estimated for Colombian nontraditional exports through a multivariate cointegration analysis. Based on the combination of cointegration and exogeneity concepts and the inclusion of the complete dynamic system, the paper shows the existence of a long-run relationship among nontraditional exports, relative price and foreign demand, and higher long-run elasticities than those provided by the long-run cointegration vector coefficients that are usually reported in the trade literature.