42 research outputs found
Are we missing the platforms for the crowd? Comparing investment drivers across multiple crowdfunding platforms
Crowdfunding platforms have attracted the attention of practitioners and scholars alike. The term ‘crowdfunding’, first coined in the early 2000s, describes a new institutional form in the financial markets which utilizes digital platforms to originate and aggregate funding. There is abundant research on the topic. Yet extant work mainly consists of single-platform studies. We argue that observing patterns on one platform does not necessarily advance our understanding of other platforms. Specifically, we use data from eight major crowdfunding platforms to conduct a variance decomposition analysis of funding success. The findings suggest factors associated with success in a given platform do not replicate to the other platforms. It underscores the generalizability challenge facing the crowdfunding literature. We therefore highlight the need to complement single-platform studies with cross-platform studies
Social capital of venture capitalists and start-up funding
How does the social capital of venture capitalists (VCs) affect the funding of start-ups? By building on the rich social capital literature, we hypothesize a positive effect of VCs' social capital, derived from past syndication, on the amount of money that start-ups receive. Specifically, we argue that both structural and relational aspects of VCs' social networks provide VCs with superior access to information about current investment objects and opportunities to leverage them in the future, increasing their willingness to invest in these firms. Our empirical results, derived from a novel dataset containing more than 1,500 first funding rounds in the Internet and IT sector, strongly confirm our hypotheses. We discuss the implications of our findings for theories of venture capital and entrepreneurship, showing that the role and effect of VCs' social capital on start-up firms may be more complex than previously argued in the literature
Phylogenetic evidence for the invasion of a commercialized European Phasmarhabditis hermaphrodita lineage into North America and New Zealand
Biological control (biocontrol) as a component of pest management strategies reduces reliance on synthetic chemicals, and seemingly offers a natural approach that minimizes environmental impact. However, introducing a new organism to new environments as a classical biocontrol agent can have broad and unanticipated biodiversity effects and conservation consequences. Nematodes are currently used in a variety of commercial biocontrol applications, including the use of Phasmarhabditis hermaphrodita as an agent targeting pest slug and snail species. This species was originally discovered in Germany, and is generally thought to have European origins. P. hermaphrodita is sold under the trade name Nemaslug®, and is available only in European markets. However, this nematode species was discovered in New Zealand and the western United States, though its specific origins remained unclear. In this study, we analyzed 45 nematode strains representing eight different Phasmarhabditis species, collected from nine countries around the world. A segment of nematode mitochondrial DNA (mtDNA) was sequenced and subjected to phylogenetic analyses. Our mtDNA phylogenies were overall consistent with previous analyses based on nuclear ribosomal RNA (rRNA) loci. The recently discovered P. hermaphrodita strains in New Zealand and the United States had mtDNA haplotypes nearly identical to that of Nemaslug®, and these were placed together in an intraspecific monophyletic clade with high support in maximum likelihood and Bayesian analyses. We also examined bacteria that co-cultured with the nematode strains isolated in Oregon, USA, by analyzing 16S rRNA sequences. Eight different bacterial genera were found to associate with these nematodes, though Moraxella osloensis, the bacteria species used in the Nemaslug® formulation, was not detected. This study provided evidence that nematodes deriving from the Nemaslug® biocontrol product have invaded countries where its use is prohibited by regulatory agencies and not commercially available
Supplementary Methods and Analyses from Risky business: linking <i>Toxoplasma gondii</i> infection and entrepreneurship behaviours across individuals and countries
Disciplines such as business and economics often rely on the assumption of rationality when explaining complex human behaviours. However, growing evidence suggests that behaviour may concurrently be influenced by infectious microorganisms. The protozoan, <i>Toxoplasma gondii</i>, infects an estimated 2 billion people worldwide and has been linked to behavioural alterations in humans and other vertebrates. Here we integrate primary data from college students and business professionals with national-level information on cultural attitudes toward business to test the hypothesis that <i>T. gondii</i> infection influences individual as well as societal-scale entrepreneurship activities. Using a saliva-based assay, we found that students (<i>n </i>= 1495) who tested IgG positive for <i>T. gondii</i> exposure were 1.4× more likely to major in business and 1.70× more likely to have an emphasis in ‘management and entrepreneurship' over other business-related emphases. Among professionals attending entrepreneurship events, <i>T. gondii</i>-positive individuals were 1.8× more likely to have started their own business compared with other attendees (<i>n </i>= 197). Finally, after synthesizing and combining country-level databases on <i>T. gondii</i> infection from the past 25 years with the global entrepreneurship monitor of entrepreneurial activity, we found that infection prevalence was a consistent, positive predictor of entrepreneurial activity and intentions at the national scale, regardless of whether previously identified economic covariates were included. Nations with higher infection also had a lower fraction of respondents citing ‘fear of failure' in inhibiting initiating new business ventures. While correlational, these results highlight the linkage between parasitic infection and complex human behaviours, including those relevant to business, entrepreneurship, and economic productivity
Supplementary Methods and Analyses from Risky business: linking <i>Toxoplasma gondii</i> infection and entrepreneurship behaviours across individuals and countries
Disciplines such as business and economics often rely on the assumption of rationality when explaining complex human behaviours. However, growing evidence suggests that behaviour may concurrently be influenced by infectious microorganisms. The protozoan, <i>Toxoplasma gondii</i>, infects an estimated 2 billion people worldwide and has been linked to behavioural alterations in humans and other vertebrates. Here we integrate primary data from college students and business professionals with national-level information on cultural attitudes toward business to test the hypothesis that <i>T. gondii</i> infection influences individual as well as societal-scale entrepreneurship activities. Using a saliva-based assay, we found that students (<i>n </i>= 1495) who tested IgG positive for <i>T. gondii</i> exposure were 1.4× more likely to major in business and 1.70× more likely to have an emphasis in ‘management and entrepreneurship' over other business-related emphases. Among professionals attending entrepreneurship events, <i>T. gondii</i>-positive individuals were 1.8× more likely to have started their own business compared with other attendees (<i>n </i>= 197). Finally, after synthesizing and combining country-level databases on <i>T. gondii</i> infection from the past 25 years with the global entrepreneurship monitor of entrepreneurial activity, we found that infection prevalence was a consistent, positive predictor of entrepreneurial activity and intentions at the national scale, regardless of whether previously identified economic covariates were included. Nations with higher infection also had a lower fraction of respondents citing ‘fear of failure' in inhibiting initiating new business ventures. While correlational, these results highlight the linkage between parasitic infection and complex human behaviours, including those relevant to business, entrepreneurship, and economic productivity
New and Interesting Fungi. 7.
SUPPLEMENTARY MATERIAL: FigShare doi: 10.25403/UPre-
searchdata.26176783.
FIG. S1. Single gene phylogenies of Penicillium sect. Fasciculata ser.
Camembertiorum based on BenA, CaM, RPB1, RPB2, Cct8 and Tsr1.
Datasets were aligned using MAFFT v. 7.520 (Katoh & Standley 2013)
and a Maximum Likelihood tree was calculated in IQ-TREE v. 2.2.2.6
(Minh et al. 2020). The the most appropriate nucleotide substitution
model based on the Akaike information criterion was applied to each
region and its exons and introns using PartitionFinder v. 2 (Lanfear et al.
2017). The trees were rooted to P. expansum. Penicillium dabashanicum
strains are shown in coloured bold text. Branch support in nodes higher
than 80 % bootstrap are indicated above branches (T = ex-type).
FIG. S2. Single gene phylogenies of Penicillium subg. Penicillium based
on ITS, BenA, CaM and RPB2. Datasets were aligned using MAFFT v.
7.520 (Katoh & Standley 2013) and a Maximum Likelihood tree was
calculated in IQ-TREE v. 2.2.2.6 (Minh et al. 2020). The nucleotide
substitution model GTR+I+G was applied to each region and its exons
and introns (Abadi et al. 2019). The trees were rooted to P. glabrum.
Penicillium pascuigraminis is shown in coloured bold text. Branch
support in nodes higher than 80 % bootstrap are indicated above
branches (T = ex-type).
FIG. S3. Single gene phylogenies of Penicillium sect. Canescentia ser.
Atroveneta based on BenA, CaM and RPB2. Datasets were aligned using
MAFFT v. 7.520 (Katoh & Standley 2013) and a Maximum Likelihood
tree was calculated in IQ-TREE v. 2.2.2.6 (Minh et al. 2020). The
nucleotide substitution model GTR+I+G was applied to each region
and its exons and introns (Abadi et al. 2019). The trees were rooted
to P. canescens. Penicillium viridipigmentum is shown in coloured bold
text. Branch support in nodes higher than 80 % bootstrap are indicated
above branches (T = ex-type).
FIG. S4. Single gene phylogenies of Talaromyces sect. Islandici based
on ITS, BenA, CaM and RPB2. Datasets were aligned using MAFFT v.
7.520 (Katoh & Standley 2013) and a Maximum Likelihood tree was
calculated in IQ-TREE v. 2.2.2.6 (Minh et al. 2020). The nucleotide
substitution model GTR+I+G was applied to each region and its exons
and introns (Abadi et al. 2019). The trees were rooted to T. subinflatus.
Talaromyces podocarpi is shown in coloured bold text. Branch support
in nodes higher than 80 % bootstrap are indicated above branches (T =
ex-type).
TABLE S1. List of species, vouchers and GenBank accession numbers of
sequences used in this study.
TABLE S2. Strains used for phylogenetic comparisons of Anthracocystis.
TABLE S3. GenBank accession numbers of additional isolates included in
phylogenetic analyses of the genus Bisifusarium.
TABLE S4. Strains used for phylogenetic comparisons of Devriesia and
related genera.
TABLE S5. Strains used for phylogenetic comparisons of Ericboehmia
thailandica and related species.
TABLE S6. GenBank accession numbers of additional isolates included in
phylogenetic analyses of the Fusarium redolens species complex.
TABLE S7. GenBank accession numbers of additional isolates included in
phylogenetic analyses of the genus Macroconia.
TABLE S8. Strains used for phylogenetic comparisons of Penicillium
cederbergense and related species.
TABLE S9. Strains used for phylogenetic comparisons of Penicillium
dabashanicum and related species.
TABLE S10. Strains used for phylogenetic comparisons of Penicillium
pascuigraminis and related species.
TABLE S11. Strains used for phylogenetic comparisons of Penicillium
viridipigmentum and related species.
TABLE S12. Strains used for phylogenetic comparisons of Talaromyces
podocarpi and related species.Two new genera, 17 new species, two epitypes, and six interesting new host and / or geographical
records are introduced in this study. New genera include: Cadophorella (based on Cadophorella faginea) and
Neosatchmopsis (based on Neosatchmopsis ogrovei). New species include: Alternaria halotolerans (from hypersaline
sea water, Qatar), Amylostereum stillwellii (from mycangia of Sirex areolatus, USA), Angiopsora anthurii (on leaves of
Anthurium andraeanum, Brazil), Anthracocystis zeae-maydis (from pre-stored Zea mays, South Africa), Bisifusarium
solicola (from soil, South Africa), Cadophorella faginea (from dead capsule of Fagus sylvatica, Germany), Devriesia
mallochii (from house dust, Canada), Fusarium kirstenboschense (from soil, South Africa), Macroconia podocarpi (on
ascomata of ascomycete on twigs of Podocarpus falcatus, South Africa), Neosatchmopsis ogrovei (on Eucalyptus leaf
litter, Spain), Ophiocordyceps kuchinaraiensis (on Coleoptera larva, Thailand), Penicillium cederbergense (from soil,
South Africa), Penicillium pascuigraminis (from pasture mulch, South Africa), Penicillium viridipigmentum (from soil,
South Africa), Pleurotheciella acericola (on stem, bark of living tree of Acer sp., Germany), Protocreopsis physciae (on
Physcia caesia, Netherlands), and Talaromyces podocarpi (from soil, South Africa).The European Union’s Horizon 2020 research and
innovation program (RISE) under the Marie Skłodowska-
Curie grant agreement No. 101008129, the Dutch NWO Roadmap grant agreement No. 2020/ENW/00901156, the Tree Protection Co-operative Programme and
Natural Resources Canada, he National Research Foundation of South Africa, the
Maize Trust, and the Future Leaders - African Independent
Research fellowship program.https://fuse-journal.orghj2024BiochemistryForestry and Agricultural Biotechnology Institute (FABI)GeneticsMicrobiology and Plant PathologySDG-15:Life on lan