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41.
In Flak/Schmid (1993) an outlier test for linear processes was introduced. The test statistic bases on a comparison of each
observation with a one-step predictor. It was assumed that an upper bound for the total number of outlierss
n is known, wheren denotes the sample size. The asymptotic distribution of the test statistic was derived under the assumption thats
n/n → 0 ands
n → ∞ asn → ∞. This note deals with the asymptotic behaviour of this quantity, ifs
n/n →p
0 ∈ (0, 1). 相似文献
42.
In contrast with the steadily rising shares of other regional exporters, Singapore's export shares in the global electronics market have been faltering in recent years. This has given rise to concerns about its export competitiveness. The drop in Singapore's global ranking can be attributed to shrinking exports of end products and low‐end electronics parts, as manufacturers relocate such assembly production out of Singapore to the regional economies. Fortunately, Singapore remains competitive in the export of high‐end intermediate electronics components, which are characterized by capability, technology, and automation‐intensive processes. While Singapore is progressing in the right direction, the climb up the high‐tech value chain needs to be further accelerated in order to maintain a technology gap with regional exporters. Besides accelerating its own industrial upgrading, Singapore needs to actively pursue measures that would help create a more integrated and competitive production platform for ASEAN, as well as to seek opportunities to service the rapidly enlarging consumer market in China. © 2003 Wiley Periodicals, Inc. 相似文献
43.
44.
The size and development of the shadow economy: An empirical investigation from states of India 总被引:2,自引:0,他引:2
Kausik Chaudhuri Friedrich Schneider Sumana Chattopadhyay 《Journal of development economics》2006,80(2):428-443
Using the state level data from India, this paper investigates the size of the hidden economy in Indian states over the period 1974/75 to 1995/96. Our analysis has shown that after liberalization of the Indian economy in 1991/92, the growth in the size of the hidden economy has decreased on an average. Our results show that the growth in the size of the hidden economy is approximately 4% less in scheduled election years than in all other years. We also demonstrate that the growth is significantly lower in those states where the coalition government is in power. An increased growth of newspapers and the literacy rates translate to cleaner governance, e.g. to fewer amounts of shadow economy activities in the economy. 相似文献
45.
46.
The measures taken so far to move towards currency convertibility and combat inflation in Russia and the other CIS countries
are based largely on a three-stage programme formulated by the IMF. The following article presents alternatives and compares
them with the IMF concept from the point of view of credibility. 相似文献
47.
48.
49.
Monitoring the mean and the variance of a stationary process 总被引:3,自引:0,他引:3
We deal with the problem of how deviations in the mean or the variance of a time series can be detected. Several simultaneous control charts are introduced which are based on EWMA (exponentially weighted moving average) statistics for the mean and the empirical variance. The combined X − S2 EWMA chart is extended to time series. Further simultaneous charts are considered. The comparision of these schemes shows that the residual attempt must be favored if a variance change is present. 相似文献
50.
Matthias Raddant Friedrich Wagner 《Journal of Economic Interaction and Coordination》2016,11(2):229-246
We analyze the returns of stocks contained in the Standard & Poor’s 500 index from 1987 until 2011. We use covariance matrices of the firms’ returns determined in a time windows of several years. We find that the eigenvector belonging to the leading eigenvalue (the market) exhibits a phase transition. The market is in an ordered state from 1995 to 2005 and in a disordered state after 2005. We can relate this transition to an order parameter derived from the stocks’ beta and the trading volume. This order parameter can also be interpreted within an agent-based model. 相似文献