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41.
Andrew Kerr 《The South African journal of economics. Suid-afrikaanse tydskrif vir ekonomie》2017,85(3):321-340
In this paper, I describe the monetary and time costs of commuting to work in South African cities, and how these have changed in the post‐Apartheid era. I interpret these results in light of a paper by Brueckner, who used a simple urban model to suggest that location and commuting patterns by race could change as a result of the repeal of Apartheid era legislation such as the Group Areas Act that made it impossible for black South Africans to live near the centre of cities. A key finding is that monetary and time costs of commuting in South African cities are high and have increased in the post‐Apartheid period. Journey times are much higher than the OECD country average and a sample of developing country cities. Part of the explanation for increasing average commute times is population growth in South African cities, which has been substantial. Both the population and number of commuters doubled between 1993 and 2013 in the six metropolitan municipalities (metros) analysed in this paper. Since commuting costs a substantial amount and generates negative externalities through congestion I also explore the financing of public transport. 相似文献
42.
Despite a decade of transition, the agri-food sectors of the former command economies consistently underperform relative to their potential. Underproduction and underinvestment are generally observed. This paper develops a model of bilateral monopoly linkages between firms along an agri-food supply chain. In the absence of competitive market forces and an efficient system of commercial law, deficient production and investment should be expected. If the agri-food sectors of the former command economies are to realize their potential, more resources will have to be devoted to reducing the transaction costs associated with broadening markets and enforcing contracts.
Bien que dix années aient passé, le secteur agroalimentaire des anciennes économies dirigées ne cesse d'enregistrer un rendement inférieur à celui auquel on pourrait s'attendre. La sous-production et le sous-investissement sont monnaie courante. Les auteurs proposent un modèle reproduisant le monopole bilatéral qui existe entre les entreprises du circuit d'approvisionnement agroalimentaire. En l'absence de concurrence sur le marché et d'un régime efficace de droit commercial, une production et des investissements insuffisants sont inévitables. Pour que le secteur agroalimentaire des anciennes économies centralisées réalise son potentiel, on devra investir plus de ressources afin de réduire les frais de transaction associés à l'élargissement des marchés et de garantir le respect des contrats. 相似文献
Bien que dix années aient passé, le secteur agroalimentaire des anciennes économies dirigées ne cesse d'enregistrer un rendement inférieur à celui auquel on pourrait s'attendre. La sous-production et le sous-investissement sont monnaie courante. Les auteurs proposent un modèle reproduisant le monopole bilatéral qui existe entre les entreprises du circuit d'approvisionnement agroalimentaire. En l'absence de concurrence sur le marché et d'un régime efficace de droit commercial, une production et des investissements insuffisants sont inévitables. Pour que le secteur agroalimentaire des anciennes économies centralisées réalise son potentiel, on devra investir plus de ressources afin de réduire les frais de transaction associés à l'élargissement des marchés et de garantir le respect des contrats. 相似文献
43.
The effects of land sales restrictions on credit use, land investment and cultivation decisions are investigated using data from two villages in south India. Sales restrictions are found to have little ellect on credit supply and demand or demand tor land improvements. Some household characteristics are found to affect investment demand on plots subject to sales restrictions in one village, suggesting that the ‘transactions effect’ of such restrictions may be inhibiting allocative efficiency. However, we also find that household characteristics influence investment on titled plots, and that the magnitude of impact of such characteristics is greater on titled plots. These results imply that sales restrictions are not a major source of inelficiency in the villages studied, and suggest that the nature of village credit and land markets and enforcement ot sales restrictions are critical determinants of the impacts of such restrictions. 相似文献
44.
Craig Kerr 《Applied economics letters》2019,26(16):1358-1363
This paper tests for salary discrimination based on player ethnicity in Major League Soccer (MLS) by making innovative use of player movements in a unique setting. The discriminating team investigated is Club Deportivo Chivas USA, which had a preference for employing Hispanic players. Evidence of discrimination is found by analyzing how other teams valued the former players of Chivas USA differently across ethnicity after the team was disbanded by the league. The nature of MLS player contracts and drafting rules allow for a simple and unique test for salary discrimination that has not previously been possible to implement. 相似文献
45.
We reviewed the medical records and defecograms in 55 consecutive patients to determine the impact of results of defecography on clinical management. Main indication for defecography was constipation, present in 40 (73%) of 55 patients. In the remaining 15 patients, indications included obstructed defecation (5), incontinence (5), and miscellaneous symptoms (5). Defecography evaluated pelvic floor motion by assessing changes in the anorectal angle (ARA) and anorectal junction (ARJ) during various maneuvers, extent of evacuation, and structural abnormalities. Patients were grouped based on results of defecography as being normal (26) or abnormal (29). Comparison of measurements of the ARA and ARJ with various maneuvers showed no significant differences between the two groups. Clinical impact was determined by analyzing therapy done following defecography and subsequent patient response. In the normal group, 15 patients were managed medically, seven surgically, and four lost to follow-up. Clinical improvement occurred in 13 (59%) of 22 patients, with similar results between medical (60%) and surgical (57%) therapy. In the abnormal group, 16 had medical management, seven surgical therapy, and six lost to follow-up. Clinical improvement occurred in 13 (57%) of 23 patients but surgical therapy showed more improvement. In conclusion, most standard measurements of the ARA and ARJ were of no value in determining abnormality. Results of defecography did not alter selection of medical or surgical therapy, and had little impact on patient response to therapy. 相似文献
46.
If trade unions are to reverse the membership decline sustained since 1979, more young workers must be recruited. This paper examines the views of young workers towards trade unions by reference to survey data. It argues that there is little evidence of a ‘Thatcher’s children’ effect in which principled opposition to trade unionism is widespread. Instead the paper shows that shifts in the labour market, the effects of employer resistance to trade unionism and union inefficiencies have a marked effect on the unionisation of young workers. 相似文献
47.
While governments may expect benefits to arise from trade liberalisation, those benefits may not be forthcoming if there are considerable increases in the costs faced by exporting firms in the period following liberalisation. The challenge for export managers is to identify the important transaction costs and to find the vertical coordination mechanism which minimises transaction costs given the new importing regime. As of April 1 1991 Japan's beef importing system completed a major phase of liberalisation. A mutually beneficial increase in Canada-Japanese trade will, however, require a complex and multifaceted response from the Canadian beef industry.The Scottish Agricultural College receives financial support from the Scottish Office, Agriculture and Fisheries Department. 相似文献
48.
49.
William A. Kerr 《Technological Forecasting and Social Change》1982,21(2):103-132
This study examines the factors affecting the supply of new germ plasm, a necessary condition for genetic-based technological change, in the Canadian beef cattle industry. The analysis concentrates on the factors affecting the establishment of purebred cattle enterprises geographically and over time. The results suggest a consistent pattern of location across breeds and over time. Additional results point to some of the problems from estimating the process of diffusion when the process is incomplete. Implications for the beef cattle industry are presented. 相似文献
50.
Harmonization of technical standards is often advocated as a means to remove technical barriers that reduce the welfare gains available from international trade. Organic standards are not currently harmonized internationally. If domestic organic standards reflect consumer tastes, and consumers have strong preferences for those standards, then harmonization to a common standard may reduce the benefits consumers receive from organic products. Through a consumer survey, conjoint analysis was used to explore the preferences of consumers in the US, the UK and Canada for organic food. The results suggest that consumers in the three countries do not have a strong attachment to the current national organic standards and that international harmonization may be a legitimate food policy goal. 相似文献