Do geese migrate domestically?: Evidence from the Chinese textile and apparel industry

The vast majority of empirical literature on “flying geese” examines industrial relocation across national boundaries, in particular in Asia. However, few studies have empirically tested whether this kind of “flying geese” pattern of industrial relocation has occurred domestically in a large country, provided that the regional difference is large enough. Using textile and apparel industry data for the period 1997–2008 in China, the paper shows that until 2004, the textile and apparel industry was still concentrated in the eastern region of China, but starting in 2005, the flying geese phenomenon of industrial relocation began to appear.industrial relocation, flying geese hypothesis, textile and apparel industry, labor-intensive industries,

“Made in China”: Crisis begets quality upgrade

The quality of manufactured products made in China has improved tremendously in the past several decades. In this paper, we argue that crises are instruments for the upgrade of Chinese manufactured goods. We first develop a theoretical framework to show that a crisis, if used wisely, could present good opportunities for entrepreneurs and local governments to form collective action to improve product quality. Next, we empirically test the hypothesis using a panel data set from 1990 to 2008 covering more than 100 clusters in the Zhejiang Province of China.Cluster, crisis, manufacturing industry, quality upgrade,

Credit constraints, organizational choice, and returns to capital: Evidence from a rural industrial cluster in China

"Traditional economic theory posits that a well-functioning capital market is a necessary condition for industrialization and economic growth. In reality, micro and small enterprises are ubiquitous because entrepreneurs can undertake low-return activities with minimal barriers to entry. Using a cashmere sweater cluster in China as an example, this paper shows that organizational choice can overcome the prohibitive cost of investment. When facing credit constraints, firms are more likely to concentrate in divisible production technologies in the form of industrial clusters. Within clusters, a vertically-integrated production process can be decomposed into many small incremental stages that are more accessible for the small entrepreneurs widely available in rural China, thereby supporting industrialization even in the absence of a well-functioning capital market. The observed rate of returns to capital is closely related to the organizational choice under credit constraints." from authors' abstractIndustrialization, Entrepreneurship, Credit, Capital markets, organizational choice, Non-farm development,

Multiple testing via FDRLFDR_L for large-scale imaging data

The multiple testing procedure plays an important role in detecting the presence of spatial signals for large-scale imaging data. Typically, the spatial signals are sparse but clustered. This paper provides empirical evidence that for a range of commonly used control levels, the conventional $\operatorname {FDR}$ procedure can lack the ability to detect statistical significance, even if the $p$-values under the true null hypotheses are independent and uniformly distributed; more generally, ignoring the neighboring information of spatially structured data will tend to diminish the detection effectiveness of the $\operatorname {FDR}$ procedure. This paper first introduces a scalar quantity to characterize the extent to which the "lack of identification phenomenon" ($\operatorname {LIP}$) of the $\operatorname {FDR}$ procedure occurs. Second, we propose a new multiple comparison procedure, called $\operatorname {FDR}_L$, to accommodate the spatial information of neighboring $p$-values, via a local aggregation of $p$-values. Theoretical properties of the $\operatorname {FDR}_L$ procedure are investigated under weak dependence of $p$-values. It is shown that the $\operatorname {FDR}_L$ procedure alleviates the $\operatorname {LIP}$ of the $\operatorname {FDR}$ procedure, thus substantially facilitating the selection of more stringent control levels. Simulation evaluations indicate that the $\operatorname {FDR}_L$ procedure improves the detection sensitivity of the $\operatorname {FDR}$ procedure with little loss in detection specificity. The computational simplicity and detection effectiveness of the $\operatorname {FDR}_L$ procedure are illustrated through a real brain fMRI dataset.Comment: Published in at http://dx.doi.org/10.1214/10-AOS848 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org

Multiple nonsymmetric nodal solutions for quasilinear Schrödinger system

In this paper, we consider the quasilinear Schrödinger system in RN (N ≥ 3): −∆u + A(x)u − 1 2 ∆(u 2 )u = 2α |u| α−2u|v| −∆v + Bv − 1 2 ∆(v 2 )v = 2β |u| |v| β−2 v, where α, β > 1, 2 0 is a constant. By using a constrained minimization on Nehari–Pohožaev set, for any given integer s ≥ 2, we construct a nonradially symmetrical nodal solution with its 2s nodal domains

Ground states solution of Nehari-Poho\v{z}aev type for periodic quasilinear Schr\"{o}dinger system

This paper is concerned with a quasilinear Schr\"{o}dinger system in $\mathbb R^{N}$ \left\{\aligned &-\Delta u+A(x)u-\frac{1}{2}\triangle(u^{2})u=\frac{2\alpha}{\alpha+\beta}|u|^{\alpha-2}u|v|^{\beta},\\ &-\Delta v+B(x)v-\frac{1}{2}\triangle(v^{2})v=\frac{2\beta}{\alpha+\beta}|u|^{\alpha}|v|^{\beta-2}v,\\ & u(x)\to 0\ \hbox{and}\quad v(x)\to 0\ \hbox{as}\ |x|\to \infty,\endaligned\right. where $\alpha,\beta>1$ and $2<\alpha+\beta<\frac{4N}{N-2}$ ($N \geq 3$). $A(x)$ and $B(x)$ are two periodic functions. By minimization under a convenient constraint and concentration-compactness lemma, we prove the existence of ground states solution. Our result covers the case of $\alpha+\beta\in(2,4)$ which seems to be the first result for coupled quasilinear Schr\"{o}dinger system in the periodic situation