Do people change their buying behavior during crises? Insights from the COVID-19 pandemic in Sri Lanka

Purpose: Panic buying occurs in many countries, including Sri Lanka, due to the recent COVID-19 pandemic, leading to inventory shortages, supply chain disruptions, and many problems in the day-to-day lifestyle of people. This is a relatively new and unexplored area of consumer behavior, especially in the Sri Lankan context. Therefore, this study aims to explore consumer panic buying behavior in relation to Fast Moving Consumer Goods (FMCG), during the COVID-19 pandemic situation in Sri Lanka. Design/methodology/approach: Given the scarcity of available literature and the aim of uncovering genuine customer insights, the study used a qualitative methodological approach. Semi-structured interviews were conducted with twenty-five participants selected using the non-probabilistic purposive sampling method in the Western Province, Sri Lanka. Data were analyzed using the thematic analysis approach. Findings: The study found a change in customers' normal buying behavior during the COVID-19 pandemic, especially at the beginning of the pandemic period.  Seven fundamental changes were recognized related to purchasing quantity, mode of purchasing, price sensitivity, shopper, purchasing time, purchasing location, and choice of brands. Additionally, four themes were generated as reasons for adopting such panic buying behavior of FMCG: fear of fear, protective behaviors, social influence, and social trust. Originality: The study adds new knowledge by identifying changes in consumer purchasing behavior, particularly in a pandemic situation, as well as the reasons for such changes, which is a rare phenomenon in the previous literature. Implications: The study informs policymakers on how to implement appropriate policies and strategies to deal with panic buying situations. Retailers can use this expertise to effectively address the various demand conditions without disrupting their internal business practices. Keywords: Panic buying behavior; Pandemic; COVID-19, Sri Lank

Chronic Tomboys: Feminism, Survival, and Paranoia in Jodie Foster’s Body of Work

From Freaky Friday (1976) to Flightplan (2005), Jodie Foster has made a career of defying gender norms–a defiance predicated largely upon her characteristically tomboyish embodiment and a mode of being that combines activeness, visual agency, and a distinctively resistant demeanor that spans her body of work to the extent that one can hardly watch any one of her films without involuntary recourse to her earlier and later movies. This essay takes up David Fincher’s Panic Room (2002), which unites tomboy figures of two generations in Foster and Kristen Stewart and works, in light of the former’s corpus and its feminist bent, to refuse the trope that sees tomboyism capitulate to heteronormative strictures in adolescence. Instead, Panic Room reproduces that embodied resistance in an adult through interactions with her daughter. The essay then proceeds further into the films of an iconic tomboy actress to posit a mode of queer feminist reproductivity enacted through Foster’s star image and a recuperation of feminist “paranoia” through the consistent critique of heteronormativity that her aggregate body of work performs. Moreover, it addresses debates within queer theory about time, refuting antisocial currents—the push against “for-the-child” sentiments predominant in contemporary political rhetoric—and proposing an alternative, recursive temporality, and within the field of feminist film studies, demonstrating a subversive potential within commercial narrative film across the span of one Hollywood star’s career

The Impact of RDMA on Agreement

Remote Direct Memory Access (RDMA) is becoming widely available in data centers. This technology allows a process to directly read and write the memory of a remote host, with a mechanism to control access permissions. In this paper, we study the fundamental power of these capabilities. We consider the well-known problem of achieving consensus despite failures, and find that RDMA can improve the inherent trade-off in distributed computing between failure resilience and performance. Specifically, we show that RDMA allows algorithms that simultaneously achieve high resilience and high performance, while traditional algorithms had to choose one or another. With Byzantine failures, we give an algorithm that only requires $n \geq 2f_P + 1$ processes (where $f_P$ is the maximum number of faulty processes) and decides in two (network) delays in common executions. With crash failures, we give an algorithm that only requires $n \geq f_P + 1$ processes and also decides in two delays. Both algorithms tolerate a minority of memory failures inherent to RDMA, and they provide safety in asynchronous systems and liveness with standard additional assumptions.Comment: Full version of PODC'19 paper, strengthened broadcast algorith

PANIC: A Near-infrared Camera for the Magellan Telescopes

PANIC (Persson's Auxiliary Nasmyth Infrared Camera) is a near-infrared camera designed to operate at any one of the f/11 folded ports of the 6.5m Magellan telescopes at Las Campanas Observatory, Chile. The instrument is built around a simple, all-refractive design that reimages the Magellan focal plane to a plate scale of 0.125'' pixel^{-1} onto a Rockwell 1024x1024 HgCdTe detector. The design goals for PANIC included excellent image quality to sample the superb seeing measured with the Magellan telescopes, high throughput, a relatively short construction time, and low cost. PANIC has now been in regular operation for over one year and has proved to be highly reliable and produce excellent images. The best recorded image quality has been ~0.2'' FWHM.Comment: 8 pages, 5 figures. To appear in "Astronomical Telescopes and Instrumentation," Proc SPIE (Glasgow), June 2004. Version with higher resolution figures is available at http://cfa-www.harvard.edu/~pmartini/professional/publications/panic.pd

Market panic on different time-scales

Cross-sectional signatures of market panic were recently discussed on daily time scales in [1], extended here to a study of cross-sectional properties of stocks on intra-day time scales. We confirm specific intra-day patterns of dispersion and kurtosis, and find that the correlation across stocks increases in times of panic yielding a bimodal distribution for the sum of signs of returns. We also find that there is memory in correlations, decaying as a power law with exponent 0.05. During the Flash-Crash of May 6 2010, we find a drastic increase in dispersion in conjunction with increased correlations. However, the kurtosis decreases only slightly in contrast to findings on daily time-scales where kurtosis drops drastically in times of panic. Our study indicates that this difference in behavior is result of the origin of the panic-inducing volatility shock: the more correlated across stocks the shock is, the more the kurtosis will decrease; the more idiosyncratic the shock, the lesser this effect and kurtosis is positively correlated with dispersion. We also find that there is a leverage effect for correlations: negative returns tend to precede an increase in correlations. A stock price feed-back model with skew in conjunction with a correlation dynamics that follows market volatility explains our observations nicely

PANIC: the new panoramic NIR camera for Calar Alto

PANIC is a wide-field NIR camera, which is currently under development for the Calar Alto observatory (CAHA) in Spain. It uses a mosaic of four Hawaii-2RG detectors and covers the spectral range from 0.8-2.5 micron(z to K-band). The field-of-view is 30x30 arcmin. This instrument can be used at the 2.2m telescope (0.45arcsec/pixel, 0.5x0.5 degree FOV) and at the 3.5m telescope (0.23arcsec/pixel, 0.25x0.25 degree FOV). The operating temperature is about 77K, achieved by liquid Nitrogen cooling. The cryogenic optics has three flat folding mirrors with diameters up to 282 mm and nine lenses with diameters between 130 mm and 255 mm. A compact filter unit can carry up to 19 filters distributed over four filter wheels. Narrow band (1%) filters can be used. The instrument has a diameter of 1.1 m and it is about 1 m long. The weight limit of 400 kg at the 2.2m telescope requires a light-weight cryostat design. The aluminium vacuum vessel and radiation shield have wall thicknesses of only 6 mm and 3 mm respectively.Comment: This paper has been presented in the SPIE of Astronomical Telescopes and Instrumentation 2008 in Marseille (France

The Carnegie Supernova Project: The Low-Redshift Survey

Supernovae are essential to understanding the chemical evolution of the Universe. Type Ia supernovae also provide the most powerful observational tool currently available for studying the expansion history of the Universe and the nature of dark energy. Our basic knowledge of supernovae comes from the study of their photometric and spectroscopic properties. However, the presently available data sets of optical and near-infrared light curves of supernovae are rather small and/or heterogeneous, and employ photometric systems that are poorly characterized. Similarly, there are relatively few supernovae whose spectral evolution has been well sampled, both in wavelength and phase, with precise spectrophotometric observations. The low-redshift portion of the Carnegie Supernova Project (CSP) seeks to remedy this situation by providing photometry and spectrophotometry of a large sample of supernovae taken on telescope/filter/detector systems that are well understood and well characterized. During a five-year program which began in September 2004, we expect to obtain high-precision u'g'r'i'BVYJHKs light curves and optical spectrophotometry for about 250 supernovae of all types. In this paper we provide a detailed description of the CSP survey observing and data reduction methodology. In addition, we present preliminary photometry and spectra obtained for a few representative supernovae during the first observing campaign.Comment: 45 pages, 13 figures, 3 tables, accepted by PAS