Judul: The Influence of Celebrity Endorsement, Social Media Marketing and Brand Image Towards Purchase Intention of Scarlett Whitening Products
Abstrak: Seiring bertambahnya pengusaha yang bergabung dalam industri skincare di Indonesia, maka persaingan bisnis skincare akan semakin tinggi. Perusahaan harus membuat strategi dalam menjalankan usahanya, agar dapat bersaing di pasar. Penelitian ini bertujuan untuk menganalisis dimensi celebrity endorsement, social media marketing, dan brand image yang paling berpengaruh terhadap purchase intention produk Scarlett Whitening serta mengidentifikasi karakteristik responden. Penelitian ini menetapkan sampel sebanyak 190 responden yang berdomisili di Jabodetabek sebagai populasi. Teknik penentuan sampel menggunakan metode non-probability sampling jenis quota sampling. Hasil penelitian menyatakan bahwa variabel celebrity endorsement tidak berpengaruh terhadap purchase intention, sedangkan variabel social media marketing serta brand image berpengaruh terhadap purchase intention., As more entrepreneurs join the skincare industry in Indonesia, the skincare business competition will be even higher. Companies must make strategies in running their business, in order to compete in the market. This research aims to analyze the dimensions of celebrity endorsement, social media marketing, and brand image that most influence the purchase intention of Scarlett Whitening products and identify the characteristics of the respondents. This research sets a sample of 190 respondents who live in Jabodetabek as the population. The method of sampling technique was non-purposive sampling with its quota sampling type. The results of this research stated that the variable of celebrity endorsement had not an effect on purchase intention, while variables of social media marketing and brand image had an effect on purchase intention.
Keyword: Brand Image, Celebrity Endorsement, Purchase Intention, Social Media Marketing

Judul: Penggunaan Media Sosial dan Endorsement untuk Meningkatkan Transaksi Pembelian Produk Skincare
Abstrak: Industri skincare Indonesia sedang berkembang pesat. Perkembangan ini diikuti dengan bertambahnya jumlah pengusaha yang bergabung dalam industri skincare. Hal menyebabkan persaingan bisnis skincare semakin ketat. Perusahaan memerlukan strategi yang tepat agar mampu bersaing dan meningkatkan laba jangka panjang. Tujuan penelitian ini adalah menganalisis pengaruh media sosial dan endorsement sebagai media pemasaran terhadap transaksi pembelian produk skincare, serta memberikan implikasi manajerial yang tepat untuk perusahaan produk skincare yang ingin menerapkan metode pemasaran melalui media sosial dan endorsement. Penelitian ini menggunakan analisis uji regresi linier berganda. Pengumpulan data dilakukan dengan membagikan kuesioner online melalui media sosial dan jumlah responden sebanyak 290 orang. Teknik penentuan sampel menggunakan non-probability sampling jenis voluntary sampling. Hasil penelitian menunjukan bahwa media sosial dan endorsement memiliki pengaruh positif terhadap transaksi pembelian. Strategi pemasaran melalui media sosial dan endorsement disarankan untuk diterapkan oleh perusahaan yang ingin meningkatkan transaksi pembelian produk skincare.
Keyword: endorsement, media sosial, produk skincare, transaksi pembelian

Judul: Approximation of the Median of Poisson Distribution Using the Relation of Poisson-Gamma Distribution
Abstrak: A major drawback of median is that median cannot usually be defined in closed form, even in the cases where their distribution functions are known. This study gives an approximation of the closed form for the median of the Poisson distribution by using the relation of Poisson-Gamma distribution. The approximation uses elementary techniques based on the monotonicity of certain sequences involving tail probabilities of the Poisson distribution and the Central Limit Theorem. Furthermore, a closed form expression for the mean absolute deviation 􀜧|􀜰􀰒 􀵆 􀜯􀝁􀝀􁈺􀜰􀰒􁈻| is also studied. The median is relevant because of the fact that it minimizes the mean absolute deviation of a Poisson random variable (􀜰􀰒􁈻 by considering median as central tendency.
Keyword: